Animal
From Wikipedia, the free encyclopedia
For other uses, see Animal (disambiguation).
"Animalia" redirects here. For other uses, see Animalia (disambiguation).
Animals
Temporal range: Cryogenian – Present, 670–0Ma
Scientific classification
(unranked): Opisthokonta (unranked): Holozoa (unranked): Filozoa Kingdom: Animalia
Linnaeus, 1758 Phyla
- Subkingdom Parazoa
- Subkingdom Eumetazoa
- Radiata (unranked)
- Bilateria (unranked)
- Acoelomorpha
- Tullimonstrum †
- Proarticulata †
- Mesozoa (unranked)
- Nephrozoa (unranked)
- Chaetognatha[citation needed]
- Superphylum Deuterostomia
- Protostomia (unranked)
- Superphylum Ecdysozoa
- Superphylum Platyzoa
- Superphylum Lophotrochozoa
Synonyms
- Metazoa Haeckel, 1874
Animals are multicellular, eukaryotic organisms of the kingdom Animalia (also called Metazoa). All animals are motile, meaning they can move spontaneously and independently, at some point in their lives. Their body plan eventually becomes fixed as they develop, although some undergo a process of metamorphosis later on in their lives. All animals are heterotrophs: they must ingest other organisms or their products for sustenance.
Most known animal phyla appeared in the fossil record as marine species during the Cambrian explosion, about 542 million years ago. Animals are divided into various sub-groups, some of which are:vertebrates (birds, mammals, amphibians, reptiles, fish); molluscs (clams, oysters, octopuses, squid, snails); arthropods (millipedes, centipedes, insects, spiders, scorpions, crabs, lobsters, shrimp); annelids(earthworms, leeches); sponges; and jellyfish.
From Wikipedia, the free encyclopedia
For other uses, see Animal (disambiguation).
"Animalia" redirects here. For other uses, see Animalia (disambiguation).
| Animals Temporal range: Cryogenian – Present, 670–0Ma | |
|---|---|
 | |
| Scientific classification | |
| (unranked): | Opisthokonta |
| (unranked): | Holozoa |
| (unranked): | Filozoa |
| Kingdom: | Animalia Linnaeus, 1758 |
| Phyla | |
| |
| Synonyms | |
| |
Animals are multicellular, eukaryotic organisms of the kingdom Animalia (also called Metazoa). All animals are motile, meaning they can move spontaneously and independently, at some point in their lives. Their body plan eventually becomes fixed as they develop, although some undergo a process of metamorphosis later on in their lives. All animals are heterotrophs: they must ingest other organisms or their products for sustenance.
Most known animal phyla appeared in the fossil record as marine species during the Cambrian explosion, about 542 million years ago. Animals are divided into various sub-groups, some of which are:vertebrates (birds, mammals, amphibians, reptiles, fish); molluscs (clams, oysters, octopuses, squid, snails); arthropods (millipedes, centipedes, insects, spiders, scorpions, crabs, lobsters, shrimp); annelids(earthworms, leeches); sponges; and jellyfish.