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.

The world’s largest & most trusted collection of animal facts, pictures and more! Discover more than 1,000 new animals today!

Read the latest articles of animal at ScienceDirect.com, Elsevier’s leading platform of peer-reviewed scholarly literature

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.

Jul 19, 2025 · What is an animal? Animals are multicellular eukaryotes whose cells are bound together by collagen. Animals dominate human conceptions of life on Earth because of their …

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

At Animal Fact Guide, you can learn about interesting and endangered animals from around the world. Then take our fun animal quizzes!

A complete database of animal facts and information - including Galapagos wildlife, Rainforest animals, marine life, pets, endangered species and much more!

Animals are what make our world so special. Enjoy this 4K Scenic Wildlife film featuring over 130 animal species from every single continent.