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.
Before vertebrate animals adapted to specific terrestrial habitats, such as deserts, they first had to adapt to living on land. The primary adaptations to life on land occurred in the Paleozoic 400 to 360 mya (million years ago) with the evolution of amphibians.efore vertebrate animals adapted to specific terrestrial habitats, such as deserts, they first had to adapt to living on land. The primary adaptations to life on land occurred in the Paleozoic 400 to 360 mya (million years ago) with the evolution of amphibians.