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While cows can doze off and sleep lightly on their feet,
when it comes to REM sleep, they lie down just like the rest of us. This is true not just of cows, but of most other large herbivores as well – horses, bison, rhino, and more.
Cats can swim but don’t like it. Big cats are incredibly strong swimmers, with powerful webbed feet, and have been known to hunt in long stretches of water up to 9 miles long. Other big cats swim, too, such as jaguars, lions, and panthers routinely hunt and relax in and around the water's edge.
Frogs do not drink like we do; they absorb water directly through their skin in an area known as the 'drinking patch' located on their belly and the underside of their thighs.
Camels can walk long distances without drinking water. The hump stores up to 80 pounds of fat, which a camel can break down into water and energy when sustenance is not available. These humps give camels their legendary ability to travel up to 100 desert miles without water.
Bees communicate by dancing. Bees signal to other bees through a language of dance. A “round dance,” for example, signals that food is nearby, while other dances are used to communicate information about other environmental conditions.
All butterflies can fly. On the Kerguelen Islands near Antarctica live butterflies that cannot fly. The wind is so powerful that flying is dangerous, and so they have lost that ability over generations.
In one year, a 100-bat colony can drink the blood of 25 cows. During the darkest part of the night, common vampire bats emerge to hunt. Sleeping cattle and horses are their usual victims, but they have been known to feed on people as well. The bats drink their victim's blood for about 30 minutes.
Rats can jump three feet in the air from a flat surface and leap more than four feet horizontally.