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Explore the animal kingdom through pictures, videos, facts, and more from our animal profiles on fish, birds, reptiles, mammals, amphibians, and invertebrates.

Learn about some of nature’s most incredible species through recent discoveries and groundbreaking studies on animal habitats, behaviors, and unique adaptations.

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Research has found that baby schema attributes can be seen in other animal species, particularly those whose young require care. This may be part of why humans find some animals particularly cute.

What is animal behavior? Uncover the ways animals communicate, hunt, and survive in the wild. Learn how animal behavior influences the way species interact with their environment.

Discover which penguin species you’re most like. Personality Quiz

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Pigs are actually quite clean. The pig’s reputation as a filthy animal comes from its habit of rolling in mud to cool off.

Sloth vs. Koala: Battle for the Laziest See how animal species in trouble have come back from the brink of extinction.