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The cheek pouch is a specific morphological feature that is evident in particular subgroups of rodents (e.g. Heteromyidae and Geomyidae, or gopher), yet a common misconception is that certain families, such as Muridae (including the common black and brown rats), contain this structure when in fact their cheeks are merely elastic due to a high ...
Perognathinae is a subfamily of rodents consisting of two genera of pocket mice.Most species live in complex burrows within the deserts and grasslands of western North America, They feed mostly on seeds and other plant parts, which they carry in their fur-lined cheek pouches [2] to their burrows.
The silky pocket mice are small animals with soft pelage, long tails, and small feet compared to other heteromyids. They have long claws which are used for digging burrows and sifting sandy substrates for seeds. They have also been found to steal seeds from kangaroo rats' dens. [1] They store these seeds in large hairy external cheek pouches ...
The Arizona pocket mouse (Perognathus amplus) is a rodent native to the Sonoran Desert. It is a small mouse with a thinly furred tail that is smooth from base to tip (i.e. it has no tuft). In color it ranges from tan to orange. It is a nocturnal, burrowing animal. It eats seeds, which it carries back to its burrow in its cheek pouches.
Gophers are burrowing rodents of the family Geomyidae, characterized by fur-lined, external cheek pouches used to gather and transport food. [41] The cheek pouches of geomyids such as the camas pocket gopher are controlled by a set of muscles, [ 42 ] with a sphincter controlling the opening and closing of the pouch.
The neck is a little thinner but the heaviest part of the body is carried on the back of the head. The eyes are very small and beadlike and the ears are identified only by a meager flap of skin that follows the top of the temple. The cheek pouches are fur-lined and used for transporting food. The body gradually tapers from the head to the tail ...
They are accustomed to sandy soil and eat mostly seeds, large and small grasses and small leaves of plants. Some food found in their cheek pouches are: seeds of needle grass , bind weed, sandbur grass, a small bean (probably Astragalus), and sedge . Even those caught in grain fields usually have their pouches filled with weed seeds.
The southern giant pouched rat is a large rodent, with males larger than females. Adult males typically weigh 1.5 to 2.0 kg (3.3 to 4.4 lb), while females weigh 1.2 to 1.6 kg (2.6 to 3.5 lb). The pouches for which these rats are named consist of oversized cheek-pouches.