Animals (or Metazoa) are living creatures with many cells. They are eukaryotes. Animals get energy from other living things. Usually they eat them or are parasites. Some have photosynthetic protists as symbionts.

Quick facts: Animalia Temporal range Cryogenian – Present...
Animalia
Temporal range: CryogenianPresent
fossil range 6700 mya
Scientific classification
(unranked): Amorphea
(unranked): Obazoa
(unranked): Opisthokonta
(unranked): Holozoa
(unranked): Filozoa
Kingdom: Animalia
Linnaeus, 1758
Phyla
List of animal phyla
Synonyms
  • Metazoa
Close

The study of animals is called zoology.[1][2][3] The study of ancient life is called palaeontology.

Most animals are mobile, meaning they can move around. Animals take in oxygen, and give out carbon dioxide.[4] This cellular respiration is part of their metabolism (chemical working). In both these ways they are different from plants. Also, the cells of animals have different cell membranes to other eukaryotes like plants and fungi.

Plants are also multicellular eukaryotic organisms, but live by using light, water and basic elements to make their tissues.

Oops something went wrong: