Category: Mammals
This small species of fox is native to the Arctic region of the Northern Hemisphere. Its dense coat, which is white in winter and brown and in summer serves double duty as insulator and camouflage. The arctic fox is an omnivore that will eat any small creature it can catch, as well as carrion, berries, seaweed, and almost anything else from which it can derive nutrition. Its exceptionally keen hearing enables the arctic fox to hunt small animals burrowing underneath the snow.
Bats: The Only True-Flying Mammal
Bats, the only mammal capable of true flight, are not blind - their eyes are just fine, thank you very much. But instead of eyes, most bats rely on an incredibly fine-tuned sense of hearing when they fly and hunt. Using a technique called echolocation, they emit high-pitched calls (usually above the range of human hearing), using the echos that are reflected back to them as a means of navigation and locating objects. The ears, auditory cortex, and (in a few cases) even noses of some bats are extraordinarily specialized for echolocation; there are even bats that have adapted the frequency of their calls to frequencies above or below what their favorite prey can hear!
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