Humans, pilot whales and killer whales are the only known species [besides humans] in which females have a prolonged period of menopause — a time of life when they cannot reproduce. Now, a study in the journal Science reports the purpose that menopause serves in orcas: for females to care for their sons and make sure their genes are passed on to future generations.-- report
Females have a really unique life history,” said Emma Foster, a marine biologist at Exeter University in England. “They stop reproducing in their 30s and 40s, but they can live into their 90s.”
Showing posts with label orca. Show all posts
Showing posts with label orca. Show all posts
19 September 2012
Mother whale
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