Humans and some whales are the only known species in which females live long after they stop being able to reproduce.
Plants & Animals
Oct 29, 2023
1
24
A team of researchers studying the Ngogo community of wild chimpanzees in western Uganda's Kibale National Park for two decades has published a report in Science showing that females in this population can experience menopause ...
Plants & Animals
Oct 26, 2023
0
162
A new mathematical model of UK cat populations suggests that neutering of cats that belong to people not only affects the population dynamics of owned cats, but also affects feral, stray, and shelter subpopulations. Jenni ...
Plants & Animals
Jul 13, 2023
0
1
Mammalian sperm cannot fertilize an egg from the get-go. It's an ability acquired only after insemination, during passage through the female reproductive tract, and requires two consecutive, time-sensitive processes to provide ...
Cell & Microbiology
Aug 20, 2021
0
415
Mosquitoes are one of humanity's greatest nemeses, estimated to spread infections to nearly 700 million people per year and cause more than one million deaths.
Biotechnology
May 24, 2021
2
26
Researchers successfully built a gene drive to reduce female fertility in the mosquito that spreads malaria, but mutations gradually arose that blocked the spread of the new genes. Tony Nolan of Imperial College London, UK, ...
Biotechnology
Oct 10, 2017
0
63
Genetic studies in mice have identified a molecular mechanism crucial to maintaining egg cells in a dormant state to ensure female fertility. This work by A*STAR identifies a potential method to prevent infertility when the ...
Cell & Microbiology
Apr 5, 2017
0
4
At the start of reproductive life an ovary contains, on average, several thousands of immature ovules in a resting state that can last for several decades. But how does each resting ovule know that it is time to prepare for ...
Cell & Microbiology
Aug 17, 2016
0
5
If you are in a special relationship with another person, thank grandma - not just yours, but all grandmothers since humans evolved.
Social Sciences
Sep 7, 2015
10
937
It seems unnatural that a species could survive without having sex. Yet over the ages, evolution has endowed females of certain species of amphibians, reptiles and fish with the ability to clone themselves, and perpetuate ...
Plants & Animals
Apr 17, 2015
0
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