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Hace 4 días · A mammal (from Latin mamma 'breast') [1] is a vertebrate animal of the class Mammalia ( / məˈmeɪli.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.
Hace 5 días · A dolphin is an aquatic mammal within the infraorder Cetacea. Dolphin species belong to the families Delphinidae (the oceanic dolphins), Platanistidae (the Indian river dolphins ), Iniidae (the New World river dolphins), Pontoporiidae (the brackish dolphins), and possibly extinct Lipotidae (baiji or Chinese river dolphin).
Hace 2 días · Sheep (pl.: sheep) or domestic sheep (Ovis aries) are a domesticated, ruminant mammal typically kept as livestock. Although the term sheep can apply to other species in the genus Ovis, in everyday usage it almost always refers to domesticated sheep. Like all ruminants, sheep are members of the order Artiodactyla, the even-toed ungulates.
Hace 4 días · Bear, any of eight species of large short-tailed carnivores found in the Americas, Europe, and Asia. The sun bear is the smallest, often weighing less than 50 kg (110 pounds). The largest bear, and the largest land carnivore, is either the polar bear or the Kodiak bear; either can weigh up to 720 kg (1,600 pounds).
Hace 5 días · Killer whale, largest member of the dolphin family (Delphinidae). The killer whale is easy to identify by its size and its striking coloration: jet black on top and pure white below with a white patch behind each eye, another extending up each flank, and a variable ‘saddle patch’ just behind the dorsal fin.
Hace 1 día · A diver encountering a newborn sperm whale. See all videos for this article. sperm whale, ( Physeter macrocephalus ), the largest of the toothed whales, easily recognized by its enormous square head and narrow lower jaw. The sperm whale is dark blue-gray or brownish, with white patches on the belly.
Hace 4 días · What is a mammal? How many species of mammals are there? What are the different types of mammals? Why are mammals important? What are the threats to mammal populations? What conservation efforts are in place to protect mammals? What are some examples of mammalian habitats? What are some unique characteristics of primates?
