Animal body lengths range from 8.5 μm (0.00033 in) to 33.6 m (110 ft). They have complex ecologies and interactions with each other and their environments, forming intricate food webs.

From Aardvark to Zorse we are building the most comprehensive body of animal knowledge for you, for FREE. Click to discover a new animal today.

Copyright © 1996-2015 National Geographic Society Copyright © 2015-2026 National Geographic Partners, LLC. All rights reserved

Feb 21, 2026 · animal, (kingdom Animalia), any of a group of multicellular eukaryotic organisms (i.e., as distinct from bacteria, their deoxyribonucleic acid, or DNA, is contained in a membrane-bound nucleus).

Explore the exciting animal kingdom to know about different species of mammals, insects, amphibians and reptiles. Resource includes a great selection of pictures, facts, news, general information and …

Welcome to Animalia, an online animal encyclopedia where you can learn about all your favourite animals, and even some you may have never heard of.

Each of our animal facts pages covers a range of topics about that animal, including their diet, habitat, breeding patterns, their physical characteristics, unique personality traits and behaviors and much …

Dec 31, 2024 · Explore the animal kingdom with detailed scientific guides, species characteristics, behaviors, habitats, and interactive resources for comprehensive learning and discovery

Animals A to Z index of animal facts, animal information and animal photos for quick facts on over 100 species of animals

The common animals most people know are only about 3% of the animal kingdom. When biologists look at animals, they find things that certain animals have in common.