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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.
29. Apr. 2024 · Learn about mammals, the 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 in 27–29 orders.
- An animal is considered a mammal if it can produce milk. Other features unique to mammals include hair or fur (chemically different from hairlike s...
- It is estimated that there are more than 5,500 living mammal species. Mammals are incredibly diverse and can be found in every major habitat.
- The biggest living mammal—indeed, the largest animal ever—is the blue whale. It can be as heavy as 180 metric tons (200 short tons) and reach a len...
- According to fossil records, mammals have existed since the Triassic Period, alongside early dinosaurs such as Riojasaurus and Saltopus. True mamma...
- Mammals evolved from a group of reptiles called therapsids, which lived from 299 million to 200 million years ago. Therapsids were quadrupedal and...
- The platypus has many features not found in other mammals. It is part of a group of mammals known as monotremes, which lay eggs and have specialize...
Explore the diversity and adaptability of mammals with photos, videos, and stories from National Geographic. Learn about their traits, behaviors, habitats, and evolution.
Höhere Säugetiere (Eutheria) Die Säugetiere (Mammalia) sind eine Klasse der Wirbeltiere mit rund 6600 [1] rezent lebenden Arten. Zu ihren kennzeichnenden Merkmalen gehören das Säugen des Nachwuchses mit Milch, die in den Milchdrüsen der Weibchen produziert wird, sowie das Fell aus Haaren, das sie in Kombination mit der ...
The Mammals portal. A mammal (from Latin mamma 'breast') 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.
Learn about mammals, the warm-blooded vertebrates with hair that feed their young with milk. Explore facts and photos of different types of mammals, from aardvarks to zebras.
22. Nov. 2023 · Learn what makes an animal a mammal, see examples of different orders of mammals, and discover some interesting facts about them. Mammals are warm-blooded, hair-bearing vertebrates that produce milk and have three middle ear bones.
