Or, in general, how do we end up with large animals in harsh environments like tundra or desert? I’d naively assume that it’s advantageous to have a smaller body size and lower caloric needs in places where food is scarce. Yet neither camels nor caribou fit in my pocket.
Why aren’t austere environments populated solely by e.g. Jerboa mice?
In: Biology
Polar bears are pure carnivores and largely predate on large animals. So being large makes it easier to kill and eat those animals with less likelihood of being injured.
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