New research finds that even though hens aren't terribly picky about their mates, they are picky about whose sperm makes it to the egg.
Plants & Animals
Aug 25, 2011
2
0
A new study from UCLA professor of anthropology Brooke Scelza invites geneticists and sociologists to think more broadly about human fidelity and paternity.
Social Sciences
Feb 20, 2020
15
1455
A study was published last week on the DNA of Helicobacter pylori, the pathogen extracted from the stomach of Ötzi, the ice mummy who has provided valuable information on the life of Homo Sapiens.
Archaeology
Jan 14, 2016
1
657
Humans differ from other primates in the types and amounts of care that males provide for their offspring. The precise timing of the emergence of human "fatherhood" is unknown, but a new theory proposes that it emerged from ...
Plants & Animals
Apr 27, 2020
39
260
(PhysOrg.com) -- It is widely believed that women live long post-reproductive lives to help care for their grandchildren. According to the "Grandmother Hypothesis," post-menopausal women can increase their genetic contribution ...
Evolution
Oct 29, 2009
3
1
It's all about the grandkids! That's what a team led by an Indiana University biologist has learned about promiscuous female birds and why they mate outside their social pair.
Plants & Animals
Aug 31, 2011
3
0
In a new study published in the Proceedings of the National Academy of Sciences, an international research team led from Uppsala University discovered kin relationships among Stone Age individuals buried in megalithic tombs ...
Archaeology
Apr 15, 2019
0
1529
Compared with our closest relatives, the common chimpanzee and the bonobo, humans are pretty good at focusing exclusively on one mate at a time.
Social Sciences
Mar 11, 2020
1
110
These days it's easy to resolve questions about paternity with over-the-counter test kits. Now, researchers have put DNA evidence together with long-term genealogical data to explore similar questions of biological fatherhood ...
Evolution
Nov 14, 2019
0
226
Females can enhance the survival chances of their offspring by mating with multiple males. When it comes to immunological benefits, however, female promiscuity may not provide the young the advantages long suspected, as a ...
Evolution
Apr 15, 2016
0
4
