Animal Facts About Biology

If you keep a goldfish in the dark, it will eventually turn white

Cats have a weak sense of taste. They have only 473 tastebuds, humans have 9,000.

One reason that kittens sleep so much is because a growth hormone is released only during sleep.

A cat's jaws cannot move sideways.

A female ferret will die if it goes into heat and cannot find a mate.

Ants have two stomachs - one holds food for themselves, and the other is a 'social stomach' used to share food with other ants through regurgitation.

Most birds tilt their heads back when drinking water to let gravity help the liquid flow down their throat, but they swallow food using muscular contractions called peristalsis—the same mechanism humans use.

The katydid bug hears through small oval openings in its front legs!

Tigers have striped skin, not just striped fur!

Koalas are the only non-primates with fingerprints, and their prints are so remarkably similar to human fingerprints that even careful analysis under a microscope cannot distinguish between them.

The giant squid has the largest eyes in the world.

Mosquitoes prefer children to adults, blondes to brunettes.

It was discovered on a space mission that a frog can throw up.

In just about every species of mammal, the female lives longer than the male.

The Giant South African Earthworm can grow up to 22 feet long and 1 inch in thick.

The Chow Chow and Chinese Shar-Pei are the only two dog breeds that require a solid blue-black tongue as part of their official breed standard.

Male monkeys lose the hair on their heads in the same way men do.

A snail can enter dormancy for up to three years during drought conditions.

Roosters can't crow if they can't fully extend their necks.

A jellyfish is 95 percent water