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An Argentine black and white tegu (Salvator merianae). Tegu is a common name of a number of species of lizards that belong to the families Teiidae and Gymnophthalmidae. Tegus are native to Central and South America. They occupy a variety of habitats and are known for their large size and predatory habits. [1]
Hibernation is a state of minimal activity and metabolic depression undergone by some animal species. Hibernation is a seasonal heterothermy characterized by low body-temperature, slow breathing and heart-rate, and low metabolic rate. It is most commonly used to pass through winter months – called overwintering.
Wildlife experts say warmer temperatures mean less hibernation and more parasites for hedgehogs.
This black coloration then spreads to the rest of the body, and by the fall the coat is almost black. A second molt is thought to occur during hibernation, [2] and upon emergence from hibernation in the spring Olympic marmots may be tan or yellowish. [18] The Olympic marmot's muzzle is almost always white, with a white band in front of the eyes ...
Black bear mother and cubs hibernating, utilizing a hibernaculum as a maternity den Like other animals, mammals hibernate during seasons of harsh environmental conditions and resource scarcity. As it requires less energy to maintain homeostasis and survive when an individual is hibernating, this is a cost-effective strategy to increase survival ...
In 2012, the Argentine black and white tegu was reassigned to the resurrected genus Salvator as Salvator merianae. [55] S. merianae is called the "Argentine black and white tegu" to distinguish it from the "Colombian black and white tegu", which is another name for the gold tegu. Unscrupulous or incompetent pet dealers sometimes pass off gold ...
Other animals that winter rest are badgers. Although a bear's body temperature decreases less than that of other mammals which undergo true hibernation, mostly changing around 6-7 degrees Celsius, this is a result of their large, heat-retaining body masses. [2] Their metabolism, the main indicator of hibernation, lowers significantly. [3]
The Arctic ground squirrel typically has a beige-tan pelage with a lightly-spotted backside. Similar to the related prairie dog, it has a shorter face than the typical arboreal squirrels–due to its lifestyle of burrowing–as well as smaller ears, with a dark tail and white markings around the eyes.