Environment
Should I Stay or Should I Go?
Manguette and her colleagues found that a high percentage of infants die if they are born when the male is old and has reached the end of his reproductive years. "When a silverback dies, all females leave to join a new male", says Manguette. "If at that point a female has a suckling infant, the new silverback will most likely kill it to breed with the female right away and raise his own offspring." Female lowland gorillas can prevent this from happening by transferring to a new group right after her offspring stops suckling, leaving the infant behind with its father.
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