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The New England cottontail is a medium-sized rabbit almost identical to the eastern cottontail. [8] [9] The two species look nearly identical, and can only be reliably distinguished by genetic testing of tissue, through fecal samples (i.e., of rabbit pellets), or by an examination of the rabbits' skulls, which shows a key morphological distinction: the frontonasal skull sutures of eastern ...
The body type is heavy, rather than slender. Neonates are born with green or yellow tail tips, which progress to a darker brown or black within one year. Adults grow to a typical length (including tail) of 50–95 cm (20–37 in). In most of North America, the eastern copperhead favors deciduous forest and mixed woodlands. It may occupy rock ...
Lace monitors are found in two forms. The main form is dark grey to dull bluish-black with numerous, scattered, cream-coloured spots. The head is black and the snout is marked with prominent black and yellow bands extending under the chin and neck. The tail has narrow black and cream bands, which are narrow and get wider towards the end of the ...
The fox squirrel (Sciurus niger), also known as the eastern fox squirrel or Bryant's fox squirrel, [3] is the largest species of tree squirrel native to North America.It is sometimes mistaken for the American red squirrel or eastern gray squirrel in areas where the species co-exist, though they differ in size and coloration.
The tail is regenerated, but it takes more than two months to complete this process. [10] [161] About two dozen anoles, including almost all members of the latifrons species group, all in the chamaeleonidae species group and the La Palma anole, do not have the ability to autotomize the tail. [2] If caught or cornered, anoles will bite in self ...
Skulls of a long-tailed weasel (top), a stoat (bottom left) and least weasel (bottom right), as illustrated in Merriam's Synopsis of the Weasels of North America. The long-tailed weasel is the product of a process begun 5–7 million years ago, when northern forests were replaced by open grassland, thus prompting an explosive evolution of small, burrowing rodents.
The sagebrush lizard or sagebrush swift (Sceloporus graciosus) is a common species of phrynosomatid lizard found at mid to high altitudes in the western United States.It belongs to the genus Sceloporus (spiny lizards) in the Phrynosomatidae family of reptiles.
The desert tortoise is the official state reptile in California and Nevada. [6] The desert tortoise lives about 50 to 80 years; [7] it grows slowly and generally has a low reproductive rate. It spends most of its time in burrows, rock shelters, and pallets to regulate body temperature and reduce water loss.