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.

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

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

Dec 9, 2025 · 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).

May 26, 2023 · An animal is a complex, multicellular organism that belongs to the biological kingdom Animalia – the animal kingdom. Animals range from relatively simple organisms such as sponges …

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

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.