Animals
Animals are multicellular, eukaryotic organisms belonging to the biological kingdom Animalia. Animals consume organic material, breathe oxygen, have muscle cells, can reproduce sexually, and grow from a hollow sphere of cells, the blastula, during embryonic development. With few exceptions, animals are able to move. Animals form a clade, meaning that they arose from a single common ancestor. Over 1.5 million living animal species have been described, of which around 1.05 million are insects, over 85,000 are molluscs, and around 65,000 are vertebrates. It has been estimated there are as many as 7.77 million animal species on Earth. 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 scientific study of animals is known as zoology, and the study of animal behaviour is known as ethology.
Beyond's analysis on Animals
Recent news mentioning Animals
- — Travis Barker urges compassionate choices for animals in new Humane World for Animals campaign
- — Inside the Egg Industry: Mercy For Animals Investigation Documents the Killing of Newly Hatched Male Chicks
- — Animal Rescue Corps turns a night of music into help for animals in need
- — TechCrunch Disrupt 2026’s new Real World AI Stage features Nvidia, robots, and extinct animals
- — Jane Goodall Institute Calls on York University to Retire Nine Macaques Following Last Chance for Animals Undercover Investigation
- — Jane Goodall Institute Calls on York University to Retire Nine Macaques Following Last Chance for Animals Undercover Investigation
- — Summer May Be Ending, But the Good Times Are Just Getting Started: Stauffer's Simply Animals® Brings Playful Snacking to Back-to-School Season
- — Snakes on a campaign! When animals attack politicians
- — 'It was either feed my animals or feed myself'
- — Animal Rescue Corps brings frontline perspective to push for effective cost-of-care laws for animals seized in cruelty cases
- — How England’s brutal summer heat is affecting farm animals and crops
- — Last Chance for Animals Condemns York University for Ignoring Public Outcry and Continuing to Defend Cruel Primate Research Program Despite Investigation Documenting Suffering of Nine Macaques