Definition of float in the AudioEnglish.org Dictionary. Meaning of float. What does float mean? Proper usage and pronunciation (in phonetic transcription) of the word float. Information about float in the AudioEnglish.org dictionary, synonyms and antonyms.
Mammals evolved from a group of mammal-like reptiles called the Synapsids, specifically the Therapsids, in the Triassic period, around 250 million years ago.
The first homonids (animals from the same genus as people) evolved about 3 million years ago. Our species, Homo sapiens, evolved about 200,000 years ago. All of the time since the dinosaurs died out 65.5 million years ago is called the Cenozoic Era, thus humans evolved in the Cenozoic.umans, chimpanzees, gorillas and orangutans share an earlie â¦ r still common ancestor. These great apes and the gibbons of the Hylobatidae share an even earlier common ancestor. That is how evolution works, by common ancestry, the pattern of phylogeny tracing this out.