Menopause has been observed in rhesus monkeys,[27] chimpanzees,[28] elephants,[29] short-finned pilot whales[30] and other cetaceans,[31] as well as in a variety of other vertebrate species including the guppy,[32] the platyfish, the budgerigar, the laboratory rat and mouse, and the opossum, as well as some whales.[33] However, with the exception of the short-finned pilot whale, such examples tend to be from captive individuals and are not necessarily representative of natural populations.
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