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The deer mouse and the African elephant represent extremes among mammals of r versus K selection.
Mother giraffe and calves feeding. It is mostly the females that raise young, and they may gather in
A mother nursing her young blends into a stand of deadwood.
This iconic photograph by Dorothea Lange, entitled “Migrant Mother,” has become a famous ...
Position of the fetus in late pregnancy results in stresses on the mother’s body.
For each chromosome type in the body, there are two copies. One is from the mother, and one is from