Mammal

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• Subclass Multituberculata (extinct)
• Plagiaulacida
• Cimolodonta
• Subclass Palaeoryctoides (extinct)
• Subclass Triconodonta (extinct)
• Subclass Placentalia
• Afrosoricida
• Artiodactyla
• Carnivora
• Cetacea
• Chiroptera
• Creodonta (extinct)
• Dermoptera
• Desmostylia (extinct)
• Embrithopoda (extinct)
• Hyracoidea
• Insectivora
• Lagomorpha
• Litopterna (extinct)
• Macroscelidea
• Notoungulata (extinct)
• Perissodactyla
• Pholidota
• Primates
• Proboscidea
• Rodentia
• Scandentia
• Sirenia
• Tubulidentata
• Xenarthra
• Subclass Marsupialia
• Dasyuromorphia
• Didelphimorphia
• Diprotodontia
• Microbiotheria
• Notoryctemorphia
• Paucituberculata
• Peramelemorphia
• Subclass Monotremata
• Monotremata

The mammals are the class of vertebrate animals characterized by the presence of mammary glands, which in females produce milk for the nourishment of young; the presence of hair or fur; and which have endothermic or "warm-blooded" bodies. The brain regulates endothermic and circulatory systems, including a four-chambered heart. Mammals encompass some 5500 species, distributed in about 1200 genera, 152 families and up to 46 orders, though this varies depending on the classification scheme adopted.

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Phylogenetically, Mammalia is defined as all of the descendants of the last common ancestor of monotremes (e.g., echidnas) and therian mammals (placentals and marsupials).

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Mammal: Characteristics ►



 

Class: Class may refer to:...

Animal: :For the Muppet Show character, see Animal (Muppet). For the professional wrestler, see Joseph Laurinaitis....

Mammary gland: The Mammary gland is the organ of the female mammal that produces milk for the sustenance of the young. They contain milk-secreting adaptations of sweat glands and are the characteristic of mammals which gave the class its name. They are rudimentary in both sexes until puberty when in response to ov...




Mammal related Images and Photos (experimental)

Save Yourself, Mammal!

Mammal Lung Showing Numerous Alveoli and Several Bronchioles

Sugar Glider Petaurus Breviceps a Marsupial Mammal from Australia