CUTE SQUIRREL STUCK ON TREE

• Report rights infringement
• published: 15 Apr 2017
• views: 16

This article is about the squirrel family (Sciuridae) as a whole. For other uses, see Squirrel (disambiguation). Squirrels Temporal range: Late Eocene—Recent PreЄЄOSDCPTJKPgN Sciuridae.jpg Various members of the family Sciuridae Callosciurus prevostii Tamias sibiricus Tamiasciurus hudsonicus Sciurus niger Spermophilus columbianus Xerus inauris Cynomys ludovicianus Scientific classification e Kingdom: Animalia Phylum: Chordata Class: Mammalia Order: Rodentia Suborder: Sciuromorpha Family: Sciuridae Fischer de Waldheim, 1817 Subfamilies and tribes Subfamily Ratufinae Subfamily Sciurillinae Subfamily Sciurinae Tribe Sciurini Tribe Pteromyini Subfamily Callosciurinae Tribe Callosciurini Tribe Funambulini Subfamily Xerinae Tribe Xerini Tribe Protoxerini Tribe Marmotini and see text Squirrels are members of the family Sciuridae, a family that includes small or medium-size rodents. The squirrel family includes tree squirrels, ground squirrels, chipmunks, marmots (including woodchucks), flying squirrels, and prairie dogs amongst other rodents. Squirrels are indigenous to the Americas, Eurasia, and Africa, and were introduced by humans to Australia.[1] The earliest known squirrels date from the Eocene period and are most closely related to the mountain beaver and to the dormouse among other living rodent families. Squirrels are generally small animals, ranging in size from the African pygmy squirrel at 7–10 cm (2.8–3.9 in) in length and just 10 g (0.35 oz) in weight, to the Laotian giant flying squirrel at 1.08 m (3 ft 7 in) in length and the Alpine marmot, which weighs from 5 to 8 kg (11 to 18 lb). Squirrels typically have slender bodies with bushy tails and large eyes. In general, their fur is soft and silky, although much thicker in some species than others. The color of squirrels is highly variable between—and often even within—species.[5] In general, the hind limbs are longer than the fore limbs, and they have four or five toes on each paw. Their paws include an often poorly developed thumb, and have soft pads on the undersides.[6] Unlike most mammals, Tree squirrels can descend a tree head-first. They do so by rotating their ankles 180 degrees so the hind paws are backward-pointing and can grip the tree bark.[7] Squirrels live in almost every habitat from tropical rainforest to semiarid desert, avoiding only the high polar regions and the driest of deserts. They are predominantly herbivorous, subsisting on seeds and nuts, but many will eat insects and even small vertebrates.[8] As their large eyes indicate, in general squirrels have an excellent sense of vision, which is especially important for tree-dwelling species. They also have very versatile and sturdy claws for grasping and climbing.[9] Many also have a good sense of touch, with vibrissae on their heads and limbs.[6] The teeth of sciurids follow the typical rodent pattern, with large gnawing incisors that grow throughout life, and grinding cheek teeth set back behind a wide gap, or diastema. The typical dental formula for sciurids is 1.0.1.3 1.0.1.3 .[citation needed] Many juvenile squirrels die in the first year of life. Adult squirrels can have a lifespan of 5 to 10 years in the wild. Some can survive 10 to 20 years in captivity.[10] Feeding Squirrel eating a fruit in Manyara National Park, Tanzania Squirrels cannot digest cellulose, so they must rely on foods rich in protein, carbohydrates, and fats. In temperate regions, early spring is the hardest time of year for squirrels, because buried nuts begin to sprout and are no longer available for the squirrel to eat, and new food sources have not become available yet. During these times, squirrels rely heavily on the buds of trees. Squirrels' diets consist primarily of a wide variety of plants, including nuts, seeds, conifer cones, fruits, fungi, and green vegetation. However, some squirrels also consume meat, especially when faced with hunger.[8] Squirrels have been known to eat insects, eggs, small birds, young snakes, and smaller rodents. Indeed, some tropical species have shifted almost entirely to a diet of insects.[13] Predatory behavior has been noted by various species of ground squirrels, in particular the thirteen-lined ground squirrel.[14] For example, Bailey, a scientist in the 1920s, observed a thirteen-lined ground squirrel preying upon a young chicken.[15] Wistrand reported seeing this same species eating a freshly killed snake.[16] Whitaker examined the stomachs of 139 thirteen-lined ground squirrels and found bird flesh in four of the specimens and the remains of a short-tailed shrew in one;[17] Bradley, examining white-tailed antelope squirrels' stomachs, found at least 10% of his 609 specimens' stomachs contained some type of vertebrate, mostly lizards and rodents.[18] Morgart observed a white-tailed antelope squirrel capturing and eating a silky pocket mouse.[19]

CUTE SQUIRREL STUCK ON TREE

• Report rights infringement
• published: 15 Apr 2017
• views: 16

This article is about the squirrel family (Sciuridae) as a whole. For other uses, see Squirrel (disambiguation). Squirrels Temporal range: Late Eocene—Recent PreЄЄOSDCPTJKPgN Sciuridae.jpg Various members of the family Sciuridae Callosciurus prevostii Tamias sibiricus Tamiasciurus hudsonicus Sciurus niger Spermophilus columbianus Xerus inauris Cynomys ludovicianus Scientific classification e Kingdom: Animalia Phylum: Chordata Class: Mammalia Order: Rodentia Suborder: Sciuromorpha Family: Sciuridae Fischer de Waldheim, 1817 Subfamilies and tribes Subfamily Ratufinae Subfamily Sciurillinae Subfamily Sciurinae Tribe Sciurini Tribe Pteromyini Subfamily Callosciurinae Tribe Callosciurini Tribe Funambulini Subfamily Xerinae Tribe Xerini Tribe Protoxerini Tribe Marmotini and see text Squirrels are members of the family Sciuridae, a family that includes small or medium-size rodents. The squirrel family includes tree squirrels, ground squirrels, chipmunks, marmots (including woodchucks), flying squirrels, and prairie dogs amongst other rodents. Squirrels are indigenous to the Americas, Eurasia, and Africa, and were introduced by humans to Australia.[1] The earliest known squirrels date from the Eocene period and are most closely related to the mountain beaver and to the dormouse among other living rodent families. Squirrels are generally small animals, ranging in size from the African pygmy squirrel at 7–10 cm (2.8–3.9 in) in length and just 10 g (0.35 oz) in weight, to the Laotian giant flying squirrel at 1.08 m (3 ft 7 in) in length and the Alpine marmot, which weighs from 5 to 8 kg (11 to 18 lb). Squirrels typically have slender bodies with bushy tails and large eyes. In general, their fur is soft and silky, although much thicker in some species than others. The color of squirrels is highly variable between—and often even within—species.[5] In general, the hind limbs are longer than the fore limbs, and they have four or five toes on each paw. Their paws include an often poorly developed thumb, and have soft pads on the undersides.[6] Unlike most mammals, Tree squirrels can descend a tree head-first. They do so by rotating their ankles 180 degrees so the hind paws are backward-pointing and can grip the tree bark.[7] Squirrels live in almost every habitat from tropical rainforest to semiarid desert, avoiding only the high polar regions and the driest of deserts. They are predominantly herbivorous, subsisting on seeds and nuts, but many will eat insects and even small vertebrates.[8] As their large eyes indicate, in general squirrels have an excellent sense of vision, which is especially important for tree-dwelling species. They also have very versatile and sturdy claws for grasping and climbing.[9] Many also have a good sense of touch, with vibrissae on their heads and limbs.[6] The teeth of sciurids follow the typical rodent pattern, with large gnawing incisors that grow throughout life, and grinding cheek teeth set back behind a wide gap, or diastema. The typical dental formula for sciurids is 1.0.1.3 1.0.1.3 .[citation needed] Many juvenile squirrels die in the first year of life. Adult squirrels can have a lifespan of 5 to 10 years in the wild. Some can survive 10 to 20 years in captivity.[10] Feeding Squirrel eating a fruit in Manyara National Park, Tanzania Squirrels cannot digest cellulose, so they must rely on foods rich in protein, carbohydrates, and fats. In temperate regions, early spring is the hardest time of year for squirrels, because buried nuts begin to sprout and are no longer available for the squirrel to eat, and new food sources have not become available yet. During these times, squirrels rely heavily on the buds of trees. Squirrels' diets consist primarily of a wide variety of plants, including nuts, seeds, conifer cones, fruits, fungi, and green vegetation. However, some squirrels also consume meat, especially when faced with hunger.[8] Squirrels have been known to eat insects, eggs, small birds, young snakes, and smaller rodents. Indeed, some tropical species have shifted almost entirely to a diet of insects.[13] Predatory behavior has been noted by various species of ground squirrels, in particular the thirteen-lined ground squirrel.[14] For example, Bailey, a scientist in the 1920s, observed a thirteen-lined ground squirrel preying upon a young chicken.[15] Wistrand reported seeing this same species eating a freshly killed snake.[16] Whitaker examined the stomachs of 139 thirteen-lined ground squirrels and found bird flesh in four of the specimens and the remains of a short-tailed shrew in one;[17] Bradley, examining white-tailed antelope squirrels' stomachs, found at least 10% of his 609 specimens' stomachs contained some type of vertebrate, mostly lizards and rodents.[18] Morgart observed a white-tailed antelope squirrel capturing and eating a silky pocket mouse.[19]