Animal Kingdom

Nature had a plan. Not everyone agrees with it.

Most poopular · Water Animals

Public votes set the order. #1 is the most pooped.

Jellyfish Water Animals

No brain, no heart, no blood. One species can revert to its juvenile form over and over, which is why it gets called biologically immortal.

Dolphin Water Animals

Sleeps with half its brain at a time, because breathing is a decision it has to keep making.

Frog Water Animals

An amphibian, not a reptile: it breathes partly through its skin, which has to stay damp.

Hippo Water Animals

Spends the day in water and grazes on land at night. It cannot actually swim; it walks along the bottom.

Lobster Water Animals

Tastes with its feet and chews with its stomach, and its blood runs blue because it carries copper.

Octopus Water Animals

Has three hearts and neurons spread through its arms, so a lot of the processing happens away from the head.

Orca Water Animals

A dolphin despite the name killer whale, and pods hunt with techniques passed between generations.

Otter Water Animals

Uses stones as tools to crack shellfish, and some species hold hands while sleeping so they do not drift apart.

Shark Water Animals

Older than trees. Sharks have been around roughly 400 million years; the earliest trees, about 350.

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