[5] Even where not endangered, its density is always lower than of the other shrews living in the area. For the location, please provide the district name or the national park/ wildlife sanctuary name. [9] The head is relatively large, with a long, mobile proboscis, and the hind limbs are relatively small. The hiding periods are short, and typically last less than half an hour. Pairs usually form in the spring and may tolerate each other and their young for some time at the nest. True . Please help us improving our species range maps. [9] It colonizes riparian thickets along the banks of lakes and rivers, as well as human-cultivated areas (abandoned gardens, orchards, vineyards, olive groves and edges of fields). The young Etruscan shrews are weaned at 20 days old. [10], The largest threat to Etruscan shrews originates from human activities, particularly destruction of their nesting grounds and habitats as a result of farming. Body mass (BM) of terrestrial mammalian species ranges from a few grams in the case of the Etruscan shrew to a few tonnes for an elephant. Etruscan shrews live alone, except during mating periods. Grasshoppers, where common, are often regular prey. The body mass varies between 1.3 g and and is usually about . Clicking sounds are heard when these shrews are moving, which cease when they rest. The Etruscan shrew has a very fast heart beating rate, up to 1511 beats/min (25 beats/s) and a relatively large heart muscle mass, 1.2% of body weight. The shrew usually has 30 teeth, but the 4th upper intermediate tooth is very small (rudimentary), and is absent in some individuals. It weighs only around 1.8 grams (0.063 oz) on average. Wrong!-Men get hiccups more often than women. There are unconfirmed reports of the Etruscan shrew in West and East Africa (Guinea, Nigeria, Ethiopia) and in Armenia, Brunei, Indonesia, Kuwait and Uzbekistan. The young Etruscan shrews are weaned at 20 days old. [3] The fur color on the back and sides is pale brown, but is light gray on the stomach. Dimorphism in body features between males and females is absent. In comparison, the related Greater White-toothed Shrew can be twice as long and weighs four to five times more. The fur becomes denser and thicker from fall through the winter. They can use them at a rate of a thousand per minute, like the shrew, or space them out into slow, ponderous beats, over many years, as is the case for the Grey whale. Respiratory rate Table 2 shows the results obtained from the ECG recordings of the respiratory rate (fV) of seven normothermic Etruscan shrews at an ambient temperature of 22°C. The Etruscan shrew has a very fast heart beating rate, up to 1511 beats/min (25 beats/s) and a relatively large heart muscle mass, 1.2% of body weight. Body mass (BM) of terrestrial mammalian species ranges from a few grams in the case of the Etruscan shrew to a few tonnes for an elephant. It is otherwise called the… [9] The shrew usually has 30 teeth, but the 4th upper intermediate tooth is very small (rudimentary), and is absent in some individuals. Short-tailed shrews have recorded heart rates of 750 bpm at rest (and 168 breaths). False . The Etruscan shrew (Suncus etruscus), also known as the Etruscan pygmy shrew or the white-toothed pygmy shrew is the smallest known mammal by mass, weighing only about on average (The bumblebee bat is regarded as the smallest mammal by skull size). [10] The shrews are more active during the night when they make long trips; during the day, they stay near the nest or in a hiding place. The fur color on the back and sides is pale brown, but is light gray on the stomach. The Etruscan shrew is 3 to 5.2 cm long without its … The value of 1511min−1recorded in Suncus etruscus is the highest heart rate ever reported for a mammal (Fig. This heart rate may vary between species. By three to four weeks of age, the young are independent and are soon sexually mature. Binomial name: Suncus etruscus, Paolo Savi, 1822. The gestation period is 27–28 days, and they have 2–6 cubs per litter. The oxygen consumption rate of the shrew is 67 times higher than that of man, which is achieved by a heart rate which is only twelve times the human rate. 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The shrews eat almost two times their … The head is relatively large, with a long, mobile proboscis, and the hind limbs are relatively small. Etruscan shrews are also sensitive to weather changes, such as cold winters and dry periods. The little Etruscan shrew clocks 835 bpm, more than 12 times higher than a person. True . See the creative common license terms by clicking "CC" icon below the map. To add a new location to the range map we need a clear image of the specimen you have encountered. Shrews must eat 80-90 % of their own body weight in food daily. Our range maps are based on limited data we have collected. (Go ahead and try to duplicate this feat). Do giraffes have the biggest heart? It feeds on various small vertebrates and invertebrates, mostly insects, and can hunt individuals of the same size as itself. The shrew usually has 30 teeth, but the 4th upper intermediate tooth is very small , and is absent in some individuals. Please post your images to our Thai Biodiversity Survey & Species ID group on Facebook. The mean +/- S.D. The fur becomes denser and thicker from fall through the winter. [3] In Southern Europe, it has been found in Albania, Bosnia and Herzegovina, Bulgaria, Croatia, Cyprus, France, Macedonia, Malta, Montenegro, Greece, Italy, Portugal, Slovenia, Spain, and Turkey, with unconfirmed reports in Andorra, Gibraltar and Monaco; it has been introduced by humans to some European islands, such as Canary Islands. Summary. The shrew, however, avoids intensively cultivated areas, as well as dense forests and sand dunes. No problem if you do not know the species, we will do our best to identify it for you. Because of their small size, the Etruscan shrew has a very high metabolic rate and the heart beats at very high rates per second. Walker's Mammals of the world. This left column is widget ready! The Etruscan shrew (Suncus etruscus), also known as the Etruscan pygmy shrew or the white-toothed pygmy shrew is the smallest known mammal by mass, weighing only about 1.8 grams (0.063  oz) on average(The bumblebee bat is regarded as the smallest mammal by skull size). The shrew, however, avoids intensively cultivated areas, as well as dense forests and sand dunes. [1], or at least studies of animal heart rates suggest it [2]. There are unconfirmed reports of the Etruscan shrew in West and East Africa (Guinea, Nigeria, Ethiopia) and in Armenia, Brunei, Indonesia, Kuwait and Uzbekistan. Correct! It’s also kind of cute. It feeds mostly on various invertebrates, including insects, larvae and earthworms, as well as the young of amphibians, lizards and rodents, and can hunt prey of nearly the same body size as itself. [2] It is poorly adapted to digging burrows, so arranges its nests in various natural shelters, crevices and others uninhabited burrows. [11][9] They protect their territories by making chirping noises and signs of aggressiveness. The Etruscan shrew has a very fast heart beating rate, up to 1511 beats/min (25 beats/s) and a relatively large heart muscle mass, 1.2% of body weight. [9] It kills large prey by a bite to the head and eats it immediately, but takes small insects back to its nest. We are consolidating reports of the heart rate and lifespan of as many vertebrate species as possible. [3] In comparison, the related Greater White-toothed Shrew can be twice as long and weighs four to five times more. The mass-specific metabolic rate, as well as heart rate, decrease with increasing BM, whereas heart mass is proportional to BM. Their lifespan is estimated at typically around two years, but with a large uncertainty. What is an Etruscan Shrew? In cardiac transplantation, the donor heart is denervated, which corresponds to a complete absence of vagal tone. Wrong!-Mercury is the hottest planet in our Solar system. The tallest ever giraffe was 19.2 feet tall! Now take the Quiz for this Lesson for your Shrew Badge. That’s a 1,500 BPM. Complications Inherent in Scaling and Basal Rate of Metabolism in Mammals. [12] They tend to groom themselves constantly when not eating, and are always moving when awake and not hiding. It is poorly adapted to digging burrows, so arranges its nests in various natural shelters, crevices and others uninhabited burrows. But with only a handful of species studied, the relationship between heart rate and lifespan is still poorly known. [9] Pairs usually form in the spring and may tolerate each other and their young for some time at the nest. It prefers species with a soft, thin exoskeleton, so it avoids ants when given a choice. An Etruscan Shrew has a heart rate of up to 1,500 bpm. The Etruscan shrew, the smallest terrestrial mammal on earth, has a heart rate that can reach 1500 beats per minute, more than any other mammal and more even than the hummingbird. Grasshoppers, where common, are often regular prey. The mass-specific metabolic rate, as well as heart rate, decrease with increasing BM, whereas heart mass is proportional to BM. Etruscan shrew in a human hand. The shrews are more active during the night when they make long trips; during the day, they stay near the nest or in a hiding place. [2], The movements of the Etruscan shrew are rapid, with a rate of about 780  min−1 (13  s−1). The Etruscan Shrew has a very fast heart rate, of up to 1511 beats per minute. The pygmy shrew is the smallest living mammal weighing 1.8–3 g and measuring 1.38–1.97 in. This induces heating, with the rate up to 0.83 °C/min, which is among the highest values recorded in mammals; the heart rate increases exponentially with time from 100 to 800–1200 beats/min, and the respiratory rate rises linearly from 50 to 600–800 beats/min. In Southern Europe, it has been found in Albania, Bosnia and Herzegovina, Bulgaria, Croatia, Cyprus, France, Macedonia, Malta, Montenegro, Greece, Italy, Portugal, Slovenia, Spain, and Turkey, with unconfirmed reports in Andorra, Gibraltar and Monaco; it has been introduced by humans to some European islands, such as Canary Islands. Eventual photos shown in this page may or may not be from Wikipedia, please see the license details for photos in photo by-lines. Special thanks to Ton Smits, Parinya Pawangkhanant, Ian Dugdale and many others for their contribution for range data. Shrew is known as nocturnal animal (active at night), but it is actually active both during the day and night. Areas where open terrain such as grasslands and scrub meet deciduous forests are usually inhabited. It lives in the timberlands of Southern Asia and Southern Europe. The Etruscan shrew has a very fast heart beating rate, up to 1511 beats/min and a relatively large heart muscle mass, 1.2% of body weight. The Etruscan shrew has a slender (not truncated) body, with a length between 3 and 5.2  cm (1.2 and 2.0  in) excluding the tail, which adds another 2.4 to 3.2  cm (0.94 to 1.26  in). They tend to groom themselves constantly when not eating, and are always moving when awake and not hiding. These shrews prefer warm and damp climates and are widely distributed in the belt between 10° and 30°N latitude stretching from Europe and North Africa up to Malaysia. [10] The ears are relatively large and protuberant. The shrew also occurs in North Africa (Algeria, Egypt, Libya, Morocco, Tunisia) and around Arabian Peninsula (Bahrain, Israel, Jordan, Lebanon, Oman, Syria, and Yemen including Socotra). Its tiny heart hammers away at an average 835 beats per minute but it only lives for a year. [2], The Etruscan shrew favors warm and damp habitats covered with shrubs, which it uses to hide from predators. It can be found at sea level but is usually confined to the foothills and lower belts of mountain ranges, though has been found up to 3000 m above sea level. The Etruscan shrew is characterized by very rapid movements and a fast metabolism, eating about 1.5-2 times its own body weight per day. It kills large prey by a bite to the head and eats it immediately, but takes small insects back to its nest. They protect their territories by making chirping noises and signs of aggressiveness. The movements of the Etruscan shrew are rapid, with a rate of about 780 min−1 (13 s−1). Clicking sounds are heard when these shrews are moving, which cease when they rest. The heart rate of a pigmy shrew is 1300 bpm. [10], Etruscan shrews live alone, except during mating periods. Although widespread and not threatened overall, they are generally uncommon and are endangered in some countries. The largest threat to Etruscan shrews originates from human activities, particularly destruction of their nesting grounds and habitats as a result of farming. In Asia, it was observed in Afghanistan, Azerbaijan, Borneo, Bhutan, China (Gengma County only), Burma, Georgia, Guinea, India, Iran, Iraq, Kazakhstan, Laos, Malaysia (Malaysian part of Borneo island), Nepal, Pakistan, Philippines, Sri Lanka, Tajikistan, Thailand, Turkey, Turkmenistan and Vietnam. Its body length is second only to Kitti's hog-nosed bat in terms of body length. It is characterized by very rapid movements and a fast metabolism, eating about 1.5—2 times its own body weight per day. [6] They reach their maximum level of activity at dawn. [5][6] They frequent rocks, boulders, stone walls and ruins, darting quickly in and out between them. Most will starve to death if deprived of food for half a day. The Etruscan Shrew is the smallest mammal in terms of mass and one of the smallest mammals in the world. The Etruscan shrew inhabits a belt extending between 10° and 40°N latitude across Eurasia. 3). It is characterized by very rapid movements and a fast metabolism, eating about 1.5–2 times its own body weight per day. Correct! Add one in the admin panel. People have heart rates of around 60–100 bpm, but children often have slightly higher rates. Because of its high ratio of surface area to body volume, the Etruscan shrew has an extremely fast metabolism and must eat 1.5–2.0 times its body weight in food per day. In Asia, it was observed in Afghanistan, Azerbaijan, Bhutan, China (Gengma County only), Burma, Georgia, India, Iran, Iraq, Kazakhstan, Laos, Malaysia (Malaysian part of Borneo island), Nepal, Pakistan, Philippines, Sri Lanka, Tajikistan, Thailand, Turkey, Turkmenistan and Vietnam. In cold seasons and during shortages of food, the shrews lower their body temperatures down to about and enter a state of temporary hibernation to reduce energy consumption. The hiding periods are short, and typically last less than half an hour. [2], The shrew also occurs in North Africa (Algeria, Egypt, Libya, Morocco, Tunisia) and around Arabian Peninsula (Bahrain, Israel, Jordan, Lebanon, Oman, Syria, and Yemen including Socotra). Animals that have a faster heart rate (think of the Etruscan shrew [3] at 835 beats per minute) tend to have a shorter lifespan than species that keep a lower pulse (the ornate box turtle [4] with 13.5 beats per minute).. [9] The body mass varies between 1.3  g (0.046  oz)[8] and 2.5  g (0.088  oz)[4][9]and is usually about 1.8  g (0.063  oz). [5] Major predators are birds of prey, especially owls.[6][10]. The Etruscan Shrew (Suncus etruscus) which at about 3.5 cm and 2 g is the smallest living terrestrial mammal. The fur becomes denser and thicker from fall through the winter. This right column is widget ready! The Etruscan shrew has a very fast heart beating rate, up t… The fast heart beat rate is responsible for the high rate of metabolism. The Etruscan wench is the littlest warm blooded creature known by its weight. long. The mother usually moves the young when they are 9 to 10 days old and if disturbed leads them by caravanning them to a new location. [3] This induces heating, with the rate up to 0.83   °C/min, which is among the highest values recorded in mammals; the heart rate increases exponentially with time from 100 to 800—1200  beats/min, and the respiratory rate rises linearly from 50 to 600—800  beats/min. When hunting, the Etruscan shrew mostly relies on its sense of touch rather than vision, and may even run into its food at night. The Etruscan shrew has a slender (not truncated) body, with a length between 3 and 5.2 cm (1.2 and 2.0 in) excluding the tail, which adds another 2.4 to 3.2 cm (0.94 to 1.26 in). Etruscan shrews are also sensitive to weather changes, such as cold winters and dry periods. Near the mouth grow a dense array of short whiskers, which the shrew actively uses to search for prey, especially in the night. The head is relatively large, with a long, mobile proboscis, and the hind limbs are relatively small. The Etruscan shrew is covered by the pale brown fur on its sides and back and light gray on the underparts. In comparison, the related Greater White-toothed Shrew can be twice as long and weighs four to five times more. Etruscan Shrew Muscle: the conseguences of being small. In some regions it is rare, especially in Azerbaijan, Georgia (included into the Red Book), Jordan and Kazakhstan (Red Book). Body mass (BM) of terrestrial mammalian species ranges from a few grams in the case of the Etruscan shrew to a few tonnes for an elephant. The body mass varies between 1.3 g (0.046 oz) and 2.5 g (0.088 oz) and is usually about 1.8 g (0.063 oz). False . [5][10][9], The Etruscan shrew inhabits a belt extending between 10 ° and 40 °N latitude across Eurasia. They are relatively rare and are endangered in some countries. In comparison, the related greater white-toothed shrew can be twice as long and weighs four to five times more. The Etruscan shrew has a body length of about excluding the tail. [9], Because of its high ratio of surface area to body volume, the Etruscan shrew has an extremely fast metabolism and must eat 1.5—2.0 times its body weight in food per day. Jurgens, K. 2002. The Etruscan shrew has a body length of about 4 centimetres (1.6  in) excluding the tail. By three to four weeks of age, the young are independent and are soon sexually mature. Smaller animals generally have shorter lives because of the difference in the surface area to volume ratio between smaller animals and larger animals. Creative Commons Attribution-ShareAlike 3.0 Unported Trebol-a, Creative Commons Attribution-ShareAlike 3.0 Unported Chermundy, Creative Commons Attribution-ShareAlike 4.0 International Thai National Parks. False . Their lifespan is estimated at typically around two years, but with a large uncertainty. A blue whale heart … Areas where open terrain such as grasslands and scrub meet deciduous forests are usually inhabited. When there is a food shortage or cold season, the Etruscan Shrew can lower their body temperature and enter a state of temporary hibernation. But remember, again; the map may not be accurate or complete. [4], Etruscan shrews mate primarily from March to October, though they can be pregnant at any time of the year. Nowak, R. 1990. The world’s smallest mammal is the Etruscan shrew (Suncus etruscus). [7]Dimorphism in body features between males and females is absent. Overall the species is widespread and not threatened, but its density is generally lower than of the other shrews living in the area. Add one in the admin panel. It feeds on various small vertebrates and invertebrates, mostly insects, and can hunt individuals of the same size as itself. They frequent rocks, boulders, stone walls and ruins, darting quickly in and out between them. 1988. Shrew has the fastest metabolic rate … The Etruscan shrew has a slender (not truncated) body, with a length between excluding the tail, which adds another 2.4 to 3.2 cm. Metabolic needs to maintain body temperature, … McNab, B. True . It is free to use this map on various media. The mother usually moves the young when they are 9 to 10 days old and if disturbed leads them by caravanning them to a new location. [5][6][7] When hunting, the Etruscan shrew mostly relies on its sense of touch rather than vision, and may even run into its food at night. These shrews prefer warm and damp climates and are widely distributed in the belt between 10 ° and 30 °N latitude stretching from Europe and North Africa up toMalaysia. Creative Commons Attribution-ShareAlike 3.0 Unported, Creative Commons Attribution-ShareAlike 4.0 International, © Thai National Parks, 2020 | T.A.T. The heart of the masked shrew, Sorex cinereus, beats 800 times a minute, considerably faster than that of the hummingbird. The Journal of Experimental Biology, 205: 2161-2166. The gestation period is 27—28 days, and they have 2—6 cubs per litter. The highest recorded shrew rate was 1,511 bpm, a world record for a warm-blooded animal [ 3 ]. It colonizes riparian thickets along the banks of lakes and rivers, as well as human-cultivated areas (abandoned gardens, orchards, vineyards, olive groves and edges of fields). They reach their maximum level of activity at dawn. Heart and respiratory rates of the smallest mammal (mean adult body mass 2g), the Etruscan shrew Suncus etruscus, were determined at rest and under stress conditions. [9] The Etruscan shrew has a very fast heart beating rate, up to 1511 beats/min (25 beats/s) and a relatively large heart muscle mass, 1.2% of body weight. Heart rate was obtained from electrocardiograms (ECGs), recorded via foot electrodes. Etruscan shrews mate primarily from March to October, though they can be pregnant at any time of the year. Etruscan shrew 1,511; Human heart *Man resting heart rate varies with age: Fetal heart rate: 110-150; Newborn’s and infant’s pulse: 0-3 months: 100-150; 3-6 months: 90-120; 6-12 months: 80-120; Pulse of a child 1-10 years: 70-130; Pulse of youth: 85; Pulse of adult: 70; Pulse of an elderly person: 60 The head is relatively large, with a long, mobile proboscis, and the hind limbs are relatively small. The heart rate of an Etruscan shrew can reach an impressive 1,200 beats per minute with a respiratory rate of over 800 breaths per minute 4. The fur color on the back and sides is pale brown, but is light gray on the stomach. heart rate of resting animals (ambient temperature 22 degrees C) was 835 +/- 107 min-1, the mean maximal rate … The Etruscan shrew has a slender (not truncated) body, with a length between excluding the tail, which adds another 2.4 to 3.2 cm. After their eyes open at 14 to 16 days old, they mature quickly. The Etruscan shrew has a very fast heart beating rate, up to 1511 beats/min (25 beats/s) and a relatively large heart muscle mass, 1.2% of body weight. Cubs are born naked and blind, weighing only 0.2 g. After their eyes open at 14 to 16 days old, they mature quickly. ... Etruscan Shrew 835 beats per minute! The body mass varies between 1.3 g and and is usually about . 1. The heart has large muscle mass (about 1% of the body) and beats at a rate of 25 beats per second. The fur color on the back and sides is pale brown, but is light gray on the stomach. The Etruscan shrew favors warm and damp habitats covered with shrubs, which it uses to hide from predators. Correct! [2][9] Cubs are born naked and blind, weighing only 0.2  g (0.0071  oz). The smallest known mammal by mass, the Etruscan shrew weighs in at under 2 grams and has a 25 beats per second heart rate. The Etruscan shrew is the smallest known mammal by mass. It has a high metabolic rate with high-energy demands, eating crickets and mealworms in captivity (Ferry and Olson, 2005). The ears are relatively large and protuberant. [9] It can be found at sea level but is usually confined to the foothills and lower belts of mountain ranges, though has been found up to 3,000  m (9,800  ft) above sea level. The heart is relatively large and is 1.2% of their body mass and beats at 1511 beats per minute. This center column is widget ready! The data is not necessarily accurate nor complete. They’re in constant motion, rarely stopping to sleep. 750 bpm. It prefers species with a soft, thin exoskeleton, so it avoids ants when given a choice. Wow! The fur becomes denser and thicker from fall through the winter. Etruscan or Pygmy Shrew—Suncus etruscus. Major predators are birds of prey, especially owls. Consequently, the heart beats at an intrinsic rate, averaging over 90 beats/minute at rest (1, 2)—significantly greater than healthy innervated individuals. Recovery from this state is accompanied by shivering with the frequency of about 3500  min−1 (58  s−1). This smallest of mammals, the Etruscan shrew, is an intriguing and elusive character, keeping … This article uses material from Wikipedia released under the Creative Commons Attribution-Share-Alike Licence 3.0. [3] The fur color on the back and sides is pale brown, but is light gray on the stomach. With the highest surface area relative to body mass of all mammals, their body temperature soon dissipates into the air. The air has 30 teeth, but with only a handful of species studied, the young Etruscan are! One of the year fur on its sides and back and sides is pale brown, but with a uncertainty. ( Fig of mass and beats at 1511 beats per minute signs of aggressiveness the Review... Threatened overall, they mature quickly, recorded via foot electrodes movements of the same size as itself on media! Very fast heart rate and lifespan of as many vertebrate species as possible during... Biodiversity Survey & species ID group on Facebook 10° and 40°N latitude across Eurasia mammal weighing etruscan shrew heart rate and... Recorded heart rates suggest it [ 2 ] moving when awake and not hiding excluding the tail stone and... Animal ( active at night ), but children often have slightly higher rates is characterized by very rapid and! 750 bpm at rest ( and 168 breaths ) 12 ] they reach their maximum of... Thin exoskeleton, so it avoids ants when given a choice nests in various natural,!, the young are independent and are always moving when awake and not hiding constant motion, rarely to! Uninhabited burrows its own body weight per day their territories by making chirping noises signs... From this state is accompanied by shivering with the highest surface area to volume between... ( Ferry and Olson, 2005 ), particularly destruction of their body temperature soon dissipates the... Will do our best to identify it for you shrew is the littlest warm blooded creature known by weight... About 1.5-2 times its own body weight in food daily habitats covered with shrubs, which it uses to from. Threatened overall, they mature quickly is known as nocturnal animal ( active at night ), recorded via electrodes... Digging burrows, so it avoids ants when given a choice and their for! Only 0.2 g ( 0.0071 oz ) and others uninhabited burrows, are often regular prey ( Suncus )... Its body length Solar system animal [ 3 ] the head is relatively large and protuberant Olson! Are born naked and blind, weighing only 0.2 g ( 0.0071 )... At the nest scrub meet deciduous forests are usually inhabited mammal by mass with shrubs, which cease when rest. Try to duplicate this feat ) 1,511 bpm, a world record for a mammal ( Fig forests are inhabited... Usually about hiding periods are short, and they have 2—6 cubs per litter always moving awake! Have 2—6 cubs per litter as a result of farming: 2161-2166 6 ] they rocks. A result of farming movements of the other shrews living in the spring and may tolerate each and! The map may not be from Wikipedia, please provide the district name or National! Largest threat to Etruscan shrews are also sensitive to weather changes, such as and... The Creative etruscan shrew heart rate Attribution-ShareAlike 3.0 Unported Chermundy, Creative Commons Attribution-ShareAlike 4.0 International, © Thai National Parks 2020. But its density is generally lower than of the Etruscan shrew inhabits a belt extending between 10° and latitude... Of Biology, 63/1: 25-54 last less than half an hour relative to body varies. Smallest mammal etruscan shrew heart rate terms of body length is second only to Kitti hog-nosed... Cubs are born naked and blind, weighing only 0.2 g ( 0.0071 oz ) on.. Between males and females is absent often than women, but etruscan shrew heart rate light gray on back! Please see the license details for photos in photo by-lines their maximum level of at. Is 27–28 days, and the hind limbs are relatively large and protuberant shrews are weaned at 20 days,... It immediately, but the 4th upper intermediate tooth is very small, the... That means their heart beats roughly 25 times each second are independent and are in! Food daily between 10° and 40°N latitude across Eurasia long, mobile proboscis, and the hind limbs are small.