Yahoo Indonesia

Written By Unknown on Sabtu, 07 Maret 2015 | 12.07


Post-menopausal orcas take lead role in food search, study shows


Female killer whales live long and productive lives after they stop having babies, playing a critical role in survival of the pod as they lead the hunt for food, particularly in lean times, according to a study released on Friday. Resembling in many ways their human counterparts, female killer whales breed between ages 14 and 40 but can survive well into their 90s, while male orcas, by contrast, die much younger, rarely making it past 50, according to the study in the journal Current Biology. Killer whales join short-finned pilot whales and humans as the only species in which the females can live decades after menopause. In that time, the female killer whales, not burdened by childbearing, pass on important information to the other whales, says the study.


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