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).

Action Plan for Australian Marsupials and Monotremes - Reviews the conservation status of 209 taxa of Australian monotremes and marsupials: one species and three sub-species of monotremes and 112 species and 93 subspecies of marsupials.
Meta Description: [ Action plans and conservation overviews are major documents that have been produced by the Department since the commencement of the Endangered Species Program in 1989. ]
American Society of Primatologists: Conservation - The Society's conservation programs, Conservation Award Information and Winners.
Carnivore Preservation Trust - Founded to preserve certain endangered species that are essential to the survival of threatened ecosystems.
Carpathian Large Carnivore Project - Seeks to develop a multi-disciplinary, community based approach to the sustainable conservation of large predators in the Carpathian Mountains of Romania.
Conservation of Forest Mammals - Ecology and conservation of mammals in warm temperate rainforest of Yakushima, Japan, by David Hill.
Meta Description: [ Ecology and conservation of mammals in warm temperate rainforest of Yakushima, Japan ]
International Rhino Foundation - A non-profit corporation of institutions and individuals worldwide whose sole purpose is the conservation of Black, White, Sumatran, Javan and Indian Rhinos.
Meta Description: [ The International Rhino Foundation is a non-profit organization dedicated to the worldwide conservation of the five living species of rhinoceros: Black, White, Indian, Javan and Sumatran., XXXXXXXX ]
Mammal Species of the World - A database of mammalian taxonomy providing an on-line reference for identifying or verifying recognized scientific names and for taxonomic research.
Marine Mammal Consulting Group - Implements offshore mitigation plans and marine conservation. Gives information about marine mammals, projects undertaken, photographs and contact details.
Meta Description: [ Marine Mammal Consulting Group for environmental compliance documents, implementing offshore mitigation plans and marine conservation. ]
Predator Conservation Alliance - Protects and restores native predators and their habitats in the Northern Rockies and High Plains, USA.
Meta Description: [ Predator
Conservation Alliance conserves, protects, and restores native predators and their
habitats in the Northern Rockies and High Plains. ]
Seals and Sea Lions - Information on Australian Seals and Sea Lions, including photographs and the Australian Seal Action Plan.
Meta Description: [ This page contains information about seals and sea-lions ]
The American Society of Mammalogists - Promotes the study of mammals and involved in providing information for public policy, resources management, conservation, and education.
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The Buffalo War - A show examining the clash between Native Americans, ranchers, environmentalists and government officials over the yearly slaughter of wild bison in Yellowstone National Park.
The David Shepherd Conservation Foundation - Raises funds and works for the survival of tigers, elephants, rhinos and other critically endangered mammals in the wild.
Meta Description: [ David Shepherd Wildlife Foundation - DSWF - Saving critically endangered
mammals in the wild ]
The Mammal Society - Working to protect British mammals, halt the decline of threatened species, and advice on all issues affecting British mammals.
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The Nilgiri Tahr Foundation - An organisation working to save the Nilgiri Tahr, a wild goat species, and its habitats from destruction.
Meta Description: [ Nilgiri Tahr Trust is a non-profit organisation working for the preservation of the Tahr and its habitats in South India ]
Vechur Conservation Trust - A trust formed to save the Vechur, the smallest cow in the world, from the brink of extinction.
Meta Description: [ Vechur Conservation Trust, dedicated to the cause of biodiversity conservation is formed to save Vechur, the smallest cow in the world, from the brink of extinction. ]
Wild Camel Protection Foundation - Conservation of the wild Bactrian camel -- details of education resources, news, Lop Nur Reserve.
Meta Description: [ The Wild camel Preservation Foundation ]
Yorkshire Mammal Group - Aims to promote the scientific study and conservation of mammals and to encourage a wider public interest in them.
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