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Há 10 horas · A mammal (from Latin mamma 'breast') is a vertebrate animal of the class Mammalia (/ m ə ˈ m eɪ l i. ə /). Mammals are characterized by the presence of milk-producing mammary glands for feeding their young, a neocortex region of the brain, fur or hair, and three middle ear bones.
29 de abr. de 2024 · Learn about mammals, the group of vertebrates that nourish their young with milk and have hair, a hinged lower jaw, and a muscular diaphragm. Explore the diversity, evolution, and distribution of more than 5,500 living species of mammals.
Há 2 dias · Definition of "mammal" The ancestry of mammals. Therapsids. Triassic takeover. From cynodonts to crown mammals. Earliest crown mammals. Expansion of ecological niches in the Mesozoic. Evolution of major groups of living mammals. Evolution of mammalian features. Sexual selection. See also. References. Further reading. External links.
Há 1 dia · Marsupials are a diverse group of mammals belonging to the infraclass Marsupialia. They are primarily found in Australasia, Wallacea, and the Americas. One of the defining features of marsupials is their unique reproductive strategy, where the young are born in a relatively undeveloped state and then nurtured within a pouch.
Há 4 dias · The lion ( Panthera leo) is a large cat of the genus Panthera, native to Africa and India. It has a muscular, broad-chested body; a short, rounded head; round ears; and a hairy tuft at the end of its tail. It is sexually dimorphic; adult male lions are larger than females and have a prominent mane.
Há 4 dias · Biology. Ecology. Relationship with humans. See also. References. Bibliography. Further reading. Whales are a widely distributed and diverse group of fully aquatic placental marine mammals. As an informal and colloquial grouping, they correspond to large members of the infraorder Cetacea, i.e. all cetaceans apart from dolphins and porpoises.
Há 4 dias · For other uses, see Primate (disambiguation). Primates is an order of mammals, which is further divided into the strepsirrhines, which include lemurs, galagos, and lorisids; and the haplorhines, which include tarsiers; and the simians, which include monkeys and apes.
