Researchers observed three chimpanzee communities of the Tai National Park. They kept full demographic records and collected fecal samples to conduct paternity tests on all new community members, for up to 30 years. Catherine ...
Plants & Animals
Sep 18, 2020
1
396
Infertility is a worldwide clinical problem for human health that affects 8 to 12 percent of couples. A new study from Washington University in St. Louis has implications for understanding some age-related aspects of male ...
Plants & Animals
Aug 3, 2020
6
352
Scientists at the University of California, Davis, have successfully produced a bull calf, named Cosmo, who was genome-edited as an embryo so that he'll produce more male offspring. The research was presented in a poster ...
Cell & Microbiology
Jul 23, 2020
0
67
A new study has narrowed down the region of the genome that drives the black color in throat and face of warblers by studying the hybrid offspring produced when two species mate. The hybrids of golden-winged and blue-winged ...
Plants & Animals
Jul 14, 2020
0
7
The offspring of older mothers don't fare as well as those of younger mothers, in humans and many other species. They aren't as healthy, or they don't live as long, or they have fewer offspring themselves. A longstanding ...
Plants & Animals
Jul 2, 2020
4
401
Brown-headed cowbirds show a bias in the sex ratio of their offspring depending on the time of the breeding season, researchers report in a new study. More female than male offspring hatch early in the breeding season in ...
Plants & Animals
Jun 24, 2020
1
88
A team of researchers led by IPK Gatersleben has succeeded in providing answers to a long unsolved question in the breeding of plant hybrids. Their conclusions: the more diverse in genetics, than better, but only in cases ...
Evolution
Jun 12, 2020
0
197
Ancient humans, Neanderthals and Denisovans were genetically closer than polar bears and brown bears, and so, like the bears, were able to easily produce healthy, fertile hybrids according to a study, led by the University ...
Evolution
Jun 3, 2020
2
9236
A modification that creates more male offspring was able to eliminate populations of malaria mosquitoes in lab experiments.
Plants & Animals
May 12, 2020
3
436
A team of researchers with members affiliated with institutions in China, Germany and France has found an example of evolutionary tradeoff in Cambrian arthropods. In their paper published in the journal Science Advances, ...
