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
It’s the other way around. Small mammals spend lots of energy very quickly and need to eat disproportionately more than that body weight. You won’t find many small animals in the tundra.
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