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Vor 4 Tagen · 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.
- Evolution of mammals
Mammals are metagenomic, in that they are composed of not...
- Evolution of mammals
Vor 4 Tagen · Marine mammals are mammals that rely on marine (saltwater) ecosystems for their existence. They include animals such as cetaceans ( whales , dolphins and porpoises ), pinnipeds ( seals , sea lions and walruses ), sirenians ( manatees and dugongs ), sea otters and polar bears .
Vor 2 Tagen · 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. Dolphins and porpoises may be considered whales from a formal, cladistic perspective.
Vor 3 Tagen · 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.
Vor 4 Tagen · The raccoon (/ r ə ˈ k uː n / or US: / r æ ˈ k uː n / ⓘ, Procyon lotor), also spelled racoon and sometimes called the common raccoon or northern raccoon to distinguish it from the other species, is a mammal native to North America.
1. Mai 2024 · Die Rüsseltiere (Proboscidea) sind eine Ordnung der Säugetiere, der heute nur noch die Familie der Elefanten angehört. Diese vereint mit dem Afrikanischen Elefanten, dem Waldelefanten und dem Asiatischen Elefanten drei Arten. Benannt wurde die Ordnung nach ihrem Rüssel als auffälligstem äußerem Merkmal.
