Experts believe the 'male menopause' did not evolve in the same way as in female whales because they are not in the same social group as their children or grandchildren.
The menopause could be the reason some female whales live around 40 years longer than others, scientists have said. Five species of whales go through menopause, the only other mammals to do so aside from humans. Short-finned pilot whales, false killer whales, orcas, narwhals and beluga whales all stop releasing eggs. Researchers say the menopause could have evolved to allow them to live long enough to care for extended family.
It found the 'male menopause' did not evolve in the same way as in females because male whales are not in the same social group as their children or grandchildren. Professor Croft said: 'So they don't actually have the opportunity to be able to provide help that late in life to their close kin, so evolution just favoured them to continue to reproduce until the end of life.
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