The Best in Science News and Amazing Breakthroughs
Or so we thought. Researchers have discovered a remote population of wild chimpanzees in Uganda do in fact live decades after they go through menopause, displaying similar hormonal changes as those seen in humans.
Similar to humans but different from other chimpanzee populations, Ngogo chimpanzees often continued to live many years past the end of reproduction. Their fertility declined around 30 years of age, with no births observed after 50; some of the chimps survived for 10 or 15 years beyond that. Analyzing five hormones measured in 560 urine samples from 66 females aged 14 to 67 years also showed menopausal chimps went through very similar endocrinal changes as those associated with human menopause. Urine levels of follicle-stimulating hormone and luteinizing hormone increased, while estrogens and progestins dropped.
have suggested menopause may have evolved because of competition for resources in family groups. Called the reproductive conflict hypothesis, it suggests. It suggests older females live past their reproductive years to up the odds of their daughters reproducing and their grandoffspring surviving.
United States Latest News, United States Headlines
Similar News:You can also read news stories similar to this one that we have collected from other news sources.
- New Brunswick, New Jersey job with Rutgers Cancer Institute of New JerseyPostdoctoral positions at Rutgers Cancer Institute of New Jersey, Rutgers University-State University of New Jersey (New Brunswick campus) are available immediately.
Read more »
Curiosity rover discovers new evidence Mars once had 'right conditions' for lifeKeith Cooper is a freelance science journalist and editor in the United Kingdom, and has a degree in physics and astrophysics from the University of Manchester.
Read more »
Fact Check: Tucker Carlson Says New Evidence Clears Derek Chauvin of MurderCarlson said new court documents showed Floyd was not murdered by Derek Chauvin. Here's what to know.
Read more »
A chunk of the moon appears to be orbiting near Earth, new study suggestsBen Turner is a U.K. based staff writer at Live Science. He covers physics and astronomy, among other topics like tech and climate change. He graduated from University College London with a degree in particle physics before training as a journalist.
Read more »
New House Speaker Mike Johnson, a pedigreed evangelical Christian, suggests his election was ordained by GodA look at how his religious views help shape new House Speaker Mike Johnson.
Read more »
New study suggests cyclones in the Arctic are forming more often and getting strongerA team of Earth scientists from North Carolina State University, the University of Alaska Fairbanks, North Carolina A&T State University, and Sandia National Laboratories has found evidence that suggests cyclones have become more common over the past half-century and have also become stronger.
Read more »