Postreproductive life was once thought to be confined to humans and a couple of toothed whales, but some wild chimpanzees experience it, too
Menopause is rare in the animal kingdom. In mammals, menopause occurs one year after an individual’s final natural ovulation cycle and is marked by changes in hormone levels and infertility. It has only been documented in a few species, including humans, orcas and short-finned pilot whales. But new evidence shows that some wild chimpanzees experience menopause as well.
The Ngogo chimpanzee population is unique for many reasons. The primates, which dwell in the interior of Uganda’s Kibale National Park, are far more isolated from human cities than most of the world’s chimps. They are well-researched and have even starred in their own Netflix series. And compared with other chimpanzee populations, the Ngogo chimps tend live a long time.
They found these changes in several elderly females. The researchers were then able to combine this dataset with demographic information gathered from the population over several years. Importantly, the data demonstrated “not only that chimpanzee menopause can occur but when it occurs,” says Melissa Emery Thompson, an evolutionary anthropologist at the University of New Mexico and a co-author of the study.
Österreich Neuesten Nachrichten, Österreich Schlagzeilen
Similar News:Sie können auch ähnliche Nachrichten wie diese lesen, die wir aus anderen Nachrichtenquellen gesammelt haben.
First Proof of Menopause in Wild Chimps Could Solve Human Evolution MysteryThe discovery turns previous theories about menopause on their heads, raising questions about our own evolution.
Weiterlesen »
New Evidence Suggests Wild Chimpanzees Undergo MenopauseThe Best in Science News and Amazing Breakthroughs
Weiterlesen »
Alphabet's Q3 earnings might have shown a strong gain in Pixel revenueAlan, an ardent smartphone enthusiast and a veteran writer at PhoneArena since 2009, has witnessed and chronicled the transformative years of mobile technology. Owning iconic phones from the original iPhone to the iPhone 11 Pro Max, he has seen smartphones evolve into a global phenomenon.
Weiterlesen »
Trial set for teens accused of killing retired police chief, laughter and disrespect shownA Sept. 16 trial has been set for two teens accused of intentionally running down a 64-year-oldretired police chief while he was riding his bike.
Weiterlesen »
SoCal soccer team shown a life-time red card for brawl at end of Irvine gameVideo captures a fight at the end of a United Premiere Soccer League game in Irvine.
Weiterlesen »
PlayStation Studio Media Molecule Hit with LayoffsThe creators of Dreams undergo layoffs.
Weiterlesen »