Animals are multicellular, eukaryotic organisms in the biological kingdom Animalia.
| FactSnippet No. 1,095,651 |
12 Facts About Animals
2.
Animals have several characteristics that set them apart from other living things.
| FactSnippet No. 1,095,652 |
3.
Animals are categorised into ecological groups depending on how they obtain or consume organic material, including carnivores, herbivores, omnivores, detritivores, and parasites.
| FactSnippet No. 1,095,653 |
4.
Animals living close to hydrothermal vents and cold seeps on the dark sea floor consume organic matter of archaea and bacteria produced in these locations through chemosynthesis .
| FactSnippet No. 1,095,654 |
5.
Animals are found as long ago as the Ediacaran biota, towards the end of the Precambrian, and possibly somewhat earlier.
| FactSnippet No. 1,095,655 |
6.
Animals are thought to have originated under low-oxygen conditions, suggesting that they were capable of living entirely by anaerobic respiration, but as they became specialized for aerobic metabolism they became fully dependent on oxygen in their environments.
| FactSnippet No. 1,095,656 |
7.
Animals are monophyletic, meaning they are derived from a common ancestor.
| FactSnippet No. 1,095,657 |
8.
Animals are sister to the Choanoflagellata, with which they form the Choanozoa.
| FactSnippet No. 1,095,658 |
9.
Animals have been hunted and farmed for their fur to make items such as coats and hats.
| FactSnippet No. 1,095,659 |
10.
Animals have been used to create vaccines since their discovery in the 18th century.
| FactSnippet No. 1,095,660 |
11.
Animals have been the subjects of art from the earliest times, both historical, as in Ancient Egypt, and prehistoric, as in the cave paintings at Lascaux.
| FactSnippet No. 1,095,661 |
12.
Animals including insects and mammals feature in mythology and religion.
| FactSnippet No. 1,095,662 |