submit urlsubmit rss feedadd directoryBookmarks

article

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 endothermic or "warm-blooded" bodies. The brain regulates endothermic and circulatory systems, including a four-chambered heart. Mammals encompass some 5,500 species (including Humans), distributed in about 1,200 genera, 152 families and up to 46 orders, though this varies with the classification scheme.

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

Mammal anatomy


Skeletal system

The vast majority of mammals have seven cervical vertebrae (neck bones), including bats, giraffes, whales, and humans. The few exceptions include the manatee and the two-toed sloth, which each have only six cervical vertebrae, and the three-toed sloth with nine cervical vertebrae.

More on [ Mammal ]


directory of related categories

 

 

 
 
directory of related topics

Biodiversity :: Environment
Endangered Species :: Animals

 
Mammals RSS feed
Mammals - Twitter Search

RT @GaianCollective: Mass extinction: Why did half of N. America's large mammals disappear 40,000 to 10,000 years ago? http://bit.ly/8yZUiM
CandyWWGM (Candace) Sat, 28 Nov 2009 16:33:32 -0000
RT @GaianCollective: Mass extinction: Why did half of N. America's large mammals disappear 40,000 to 10,000 years ago? http://bit.ly/8yZUiM
Mass extinction: Why did half of N. America's large mammals disappear 40,000 to 10,000 years ago? http://bit.ly/8yZUiM
GaianCollective (Planetary Citizens) Sat, 28 Nov 2009 16:32:40 -0000
Mass extinction: Why did half of N. America's large mammals disappear 40,000 to 10,000 years ago? http://bit.ly/8yZUiM
RT @Mammal_Society: Special Xmas Offer!! Mammals of The British Isles 800-page Handbook down to £60 from £70. Visit www.mammal.org.uk. I ...
WaterVole (Jo Cartmell) Sat, 28 Nov 2009 16:30:46 -0000
RT @Mammal_Society: Special Xmas Offer!! Mammals of The British Isles 800-page Handbook down to £60 from £70. Visit www.mammal.org.uk. I ...
@jaobarreto Gratuitous bare chested scenes for us all! Teehee. It's not our fault they're hot blooded mammals who just happen to rip shirts.
Mvbennett26 (Vernice Bennett) Sat, 28 Nov 2009 16:27:50 -0000
@jaobarreto Gratuitous bare chested scenes for us all! Teehee. It's not our fault they're hot blooded mammals who just happen to rip shirts.
mam・mal [n]ほ乳動物 Whales look like fish, but are actually mammals. http://j.mp/5FvsdT
Automate_Jana (L'automate Jana) Sat, 28 Nov 2009 16:20:35 -0000
mam・mal [n]ほ乳動物 Whales look like fish, but are actually mammals. http://j.mp/5FvsdT
Mass extinction: Why did half of N. America's large mammals disappear 40,000 to 10,000 years ago?: http://bit.ly/4CcNEK via @addthis
MoxiePawsTM (Moxie Paws (TM)) Sat, 28 Nov 2009 15:57:14 -0000
Mass extinction: Why did half of N. America's large mammals disappear 40,000 to 10,000 years ago?: http://bit.ly/4CcNEK via @addthis

 
Subscribe to Mammals RSS feed

directory of related sites

Images - Answers to frequently asked questions by kids about mammals such as bears and wolves.

Adventures in the Field: A Fabulous Find - Looks through an archaeological dig to find out about ancient animals living in central Chile.

Africa Discovery, Understanding, and Conservation at The Field Museum - Looks at different animals in Africa, and undertakes research to try and make sure they don't go extinct.

500 Amazing Animal Information - Information and interesting facts on animals especially written for kids.
Meta Description: [ Information and interesting facts on animals for students. Designed by students from Long Street Primary School. ]

Australian Animals - Contains facts about dingos, dugongs, koalas, kangaroos, and tasmanian devils.

Badgers - Description of badgers, their family life, and about their living space (setts). Includes photographs, and tips for seeing them in the wild.
Meta Description: [ Badgerland - The Definitive On-Line Guide to Badgers in the United Kingdom. Buy, purchase or read about our Highly-Recommended Books, Videos, VHS, DVDs, Software, Games, Merchandise, Renardine and Gifts. Thousands of popular products, all reviewed and recommended by us for great ideas for Christm... ]

Cetacea - Basic information on cetacea; dolphins, whales, and porpoises. Tips on whale watching and how human kind influences these marine creatures.
Meta Description: [ Cetacea - the world's whales, dolphins and porpoises all on one site ]

Comparative Mammalian Brain Collections - Youth of all ages can learn the similarities and differences of the brains of various mammals, including brain sections, circuitry, and functions.

404 Fisher Cat - Contains pictures and a short story of a fisher that died on voting day.

International Marine Mammal Project - An international project dedicated to protecting marine creatures from dolphins to seals. Features archives, letters, and information these marine mammals.

Mammals - A variety of short slides on many mammals of interest ranging from the African elephant to the Wolverine and Zebra. Pictures included as well.

NSiS: Florida Wildlife - Mammal Index - Information concerning mammals from hoofed to gnawing. Also lists mammals who are on the protected list.
Meta Description: [ listing of species accounts ]

Predators - Overview and pictures for many large mammals, including the cheetah, ocelot, and wolf.
Meta Description: [ This site is all about predators. Deze site gaat helemaal over roofdieren. lots of pictures and information. veel foto's en informatie. predator, predators, predator pics, pics, roofdier, roofdieren, foto, foto's, pictures, image, images, informatie over roofdieren, info about predators ]

Respiratory System - Shows the respiratory system of several animals, including man.

The Hall of Mammals - Find information on four major groups of mammals; further facts on placental mammals includes fossil records and ecology.

The Mammal Society - Promotes the interests of mammals throughout the British Isles and elsewhere through news articles and fun zone sections.

The Wolverine Foundation - Non-profit organization directed at the support and initiation of research and information concerning wolverines.
Meta Description: [ Non-profit organization directed at the support and initiation of research and dissemination of information relative to wolverine (Gulo gulo). ]

TheWebsiteOfEverything.com - Everything about Mammals - Contains articles on many mammals with hyperlinked citations.
Meta Description: [ Mammals of the world, a list, includes facts about the following orders: Explains everything about animals/mammals including classification and facts ]

Whales, Dolphins, and Porpoises of the Cetacea Order - Research on marine mammals, with emphasis on the order of Cetacea. Find out why porpoises, dolphins, and whales belong to this order of species.
Meta Description: [ The National Marine Mammal Laboratory conducts research on marine mammals, with particular attention to issues relating to marine mammals off the coast of Oregon, Washington and Alaska. ]

Mammals related videos
Mammals vs. Dinos
Next Video
Mammals related videos

 

HOMEADVERTISINGABOUT US

articlesartsbusinesscomputersgameshealthhospitalshomekids & teensnewsmobilephysiciansrecreationreferenceregionalscienceshoppingsocietysportsworld


Submit a Site About Become an Editor