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Some male birds and mammals congregate in communal courting grounds called leks.
The deer mouse and the African elephant represent extremes among mammals of r versus K selection.
Polar bears feed upon a number of marine mammals. They are currently at the centre of international
Human infants are like all other placental mammals, except they are born at a less developed state.
The primate skull is generalized compared to many other mammals.
Primates exhibit prolonged life histories, spending more time in each stage of life than most other