Male beetles face a trade-off between competing with other males for mating opportunities and repairing damage to their sperm DNA, according to a study published April 4 in the open access journal PLOS Biology by Mareike ...
Plants & Animals
Apr 4, 2023
0
119
Males that face tougher competition for females risk having offspring with a greater number of harmful mutations in their genome than males without rivals. Researchers at Uppsala University have discovered this correlation ...
Plants & Animals
Mar 16, 2020
1
228
(Phys.org) -- Marrying multiple husbands at the same time, or polyandry, creates a safety net for women in some cultures, according to a recent study by a University of Missouri researcher. Extra husbands ensure that women's ...
Social Sciences
Aug 2, 2012
2
1
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
(PhysOrg.com) -- After studying male desert goby fish, a team of Monash researchers has suggested that male sexual behaviour is primed to produce the greatest number of offspring.
Plants & Animals
Jun 9, 2011
0
0
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
Female parrot finches can match their offspring's gender to prevailing living conditions, producing more sons in lean times, scientists in Australia said Wednesday.
Plants & Animals
Jul 31, 2012
0
0
Having elder siblings decreases mortality risk in childhood, but same-sex elder siblings are associated with lower marriage rates and fewer children for their younger siblings in adulthood, according to the results of a long-term ...
Social Sciences
Nov 22, 2012
0
0
Choosiness will lead to the best offspring. Being too choosy, however, could in the end result in no offspring at all. Female fruit flies have a solution to this dilemma.
Plants & Animals
Jun 22, 2021
0
12
