sammalia
Sammalia is a common misspelling of the scientifically correct term Mammalia, the class of vertebrate animals that includes all mammals. Members are characterized by hair or fur, mammary glands in females that produce milk for nourishing young, and three middle ear bones. Most mammals are warm-blooded (endothermic) and possess a relatively high metabolic rate.
The class Mammalia is traditionally divided into three major lineages: monotremes, marsupials, and placental mammals. Monotremes,
Anatomically, mammals share features such as a single-bossed jawbone (dentary) and three auditory ossicles (malleus, incus,
Mammals inhabit nearly all ecosystems, from oceans to deserts and high mountains. They range in size from
The fossil record shows mammalian origins in the late Triassic, with major diversification after the extinction