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Certain subspecies of caribou — the more scientific name of North American reindeer — in Canada trek over 3.000 miles annually from north to south. These hardy animals have some of the longest ...
Reindeer and whitetail deer belong to the same family of animals called Cervidae. It includes all major species of deer, dividing them into two principal groups. It includes all major species of ...
The bacteria and protozoans in the stomach of a reindeer break down lichen compounds into sugars that the animals use for sustenance. Reindeer need a lot of food to survive a long winter.
An ectotherm (from the Greek ἐκτός (ektós) "outside" and θερμός (thermós) "heat"), more commonly referred to as a "cold-blooded animal", [1] is an animal in which internal physiological sources of heat, such as blood, are of relatively small or of quite negligible importance in controlling body temperature. [2]
Cold-blooded animals are often limited by external temperatures, which can affect their ability to hunt, escape predators, and carry out other essential activities. Homeothermy could have provided a selective advantage by allowing animals to be active for longer periods of time, increasing their chances of survival.
Reindeer also travel, feed, and rest together in the wild, sometimes forming super-herds of up to 500,000 animals. Tundra reindeer migrate between forest and tundra in these massive groups in an ...
The Reindeer Has Another Name. ... While many other animals would find it difficult to adapt or survive in the snow, reindeer seem built for life in the snow. ... is cold all year round. Even in ...
The number of reindeer in the wild is rapidly dwindling, and the species is now classified as vulnerable. 6. Baby Reindeer are Called Calves. Baby reindeer are called calves, as are baby moose and ...