What are Warm-Blooded Vertebrates?
Vertebrates whose body temperature is maintained at a specific level at all times. Birds Warm-blooded, egg-laying Vertebrates of the class Aves, having its body covered with feathers and its forelimbs modified into wings. Like mammals, birds have a four-chambered heart; they have a relatively large brain and acute hearing but little sense of smell. Believed to have evolved from reptiles, birds are highly adapted for flight. Their feathers, though light, protect against cold and wet and have great strength. Intricate courtship displays are performed by many species during breeding season, when birdsong is most pronounced; singing ability is usually restricted to, or superior in, the male. Mammals The class Mammalia is a group of vertebrate animals, collectively known as mammals, in which the young are nourished with milk from special secreting glands (mammary) of the mother. Hair is a typical mammalian feature, although in many whales it has secondarily disappeared except in the fetal s
