Category: Mammals
This deer species is widespread throughout eastern and central North America, Central America, and parts of northern South America. A dynamic continuum of subspecies is represented throughout its range. Males regrow their antlers every year and their length and branching is determined by age, nutrition, and genetics. White-tailed deer are generalists who can thrive in a variety of environments.
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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