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.
Mammals. Mammals are a class of vertebrates characterised by warm-blood, hairy bodies, a four-chambered heart, a single jaw bone, sweat glands and-in females-mammary glands for suckling young. Some mammals, such as naked mole rats and whales have lost some or all of their hair.Almost all mammals give birth to live young, but there are a few that lay eggs. These are known as monotremes, and include the platypus.Scientific name: Mammalia.ome mammals, such as naked mole rats and whales have lost some or all of their hair. Almost all mammals give birth to live young, but there are a few that lay eggs. These are known as monotremes, and include the platypus. Scientific name: Mammalia.