A small international team of animal behavior researchers has found that species of glass frogs whose males help care for offspring tend to have smaller testes than species whose males do not help care for offspring. In their ...
The more we learn about the biological world, the more complex it becomes.
Evolution
Mar 28, 2023
0
55
A team of researchers affiliated with several institutions in Argentina has found chromosomal evidence of people living in South America as far back as 18,000 years ago. The group has published a paper describing their work ...
An international team of researchers has discovered that contrary to conventional views, a male mammal was found able to exert inadvertent gender bias ratios in his offspring. In their paper published in the journal Proceedings ...
Young male blue tits are less successful in fathering offspring outside their breeding pair, not because of a lack of experience, but because they are outcompeted by older males, Bart Kempenaers and colleagues from the Max ...
Plants & Animals
Apr 16, 2024
0
83
In primates, the biggest, bossiest males usually get to father the most offspring; and for a long time it was thought that this rule applied to orangutans too. Male orangutans openly compete; and it's the older males with ...
Plants & Animals
Dec 8, 2023
0
271
Cat hair could be the purr-fect way to catch criminals, according to researchers from the University of Leicester. They have shown that a single cat hair contains DNA which could link a suspect and a crime-scene, or a victim.
Cell & Microbiology
Oct 30, 2023
0
158
In a new study, researchers and members of the Muwekma Ohlone Tribe of the San Francisco Bay Area are the first to publish evidence of wealth-driven patterns in maternal investment among ancient populations.
Archaeology
Jul 13, 2023
5
533
Female monarch butterflies have no trouble finding a mate—even when a parasite kills most of the males, new research shows.
Plants & Animals
Apr 17, 2023
0
76
A team of integrative biologists at the University of California, Berkeley, has found that differences in pygmy zebra octopus striping are strong enough to tell them apart in long-term studies. In their study, reported in ...
