Animals
The organ level of organisation in animals can be first detected in flatworms and the more advanced phyla. The less-advanced taxons (like Placozoa, Porifera and Radiata) do not show consolidation of their tissues into organs.
Read more about this topic: Organ (anatomy)
Famous quotes containing the word animals:
“What distinguished man from animals was the human capacity for symbolic thought, the capacity which was inseparable from the development of language in which words were not mere signals, but signifiers of something other than themselves. Yet the first symbols were animals. What distinguished men from animals was born of their relationship with them.”
—John Berger (b. 1926)
“Old women snore violently. They are like bodies into which bizarre animals have crept at night; the animals are vicious, bawdy, noisy. How they snore! There is no shame to their snoring. Old women turn into old men.”
—Joyce Carol Oates (b. 1938)
“In their sympathies, children feel nearer animals than adults. They frolic with animals, caress them, share with them feelings neither has words for. Have they ever stroked any adult with the love they bestow on a cat? Hugged any grownup with the ecstasy they feel when clasping a puppy?”
—Jessamyn West (1907–1984)