Orangutans Suckle for up to Eight Years, Teeth Reveal (IMAGE)

American Association for the Advancement of Science (AAAS)

Orangutans Suckle for up to Eight Years, Teeth Reveal

Caption

Wild orangutan mother and 11-month old infant from Borneo. Investigations of barium in teeth from other individuals show a pattern of increasing mothers' milk consumption during the first year of life, which is consistent with behavioral observations of exclusive nursing.

Credit

Tim Laman

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