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Mother giraffe and calves feeding. It is mostly the females that raise young, and they may gather in
Structures of the external ear, middle ear, and inner ear
(a) Savanna baboons live in female-philopatric groups, among which males migrate. (b) Chimpanzees li
Functional MRI Scans These scans of human brains show localized average increases in neural activity
Early Childhood Caries When infants are given a bottle shortly before sleep
Suicide rates in Canada are more than three times higher for males than for females