(PhysOrg.com) -- It is well documented that male birds seduce females using their songs, colourful plumage and courtship dances. These signals reflect male genetic quality and will be graded by the female to determine a male's ...
Plants & Animals
Jan 27, 2012
0
0
(PhysOrg.com) -- On the eve of Charles Darwin’s 200th birthday, researchers at the University of New Mexico and University of Montana report a new twist in sexual selection theory - the realm of evolutionary science that ...
Feb 6, 2009
1
0
(Phys.org)—A female cichlid hybrid fish has been observed to have grown male reproductive organs, impregnate itself and then to have offspring, a team of researchers in the U.K. are reporting in a paper published in the ...
An isolated population of honeybees, the Cape bees, living in South Africa has evolved a strategy to reproduce without males. A research team from Uppsala University has sequenced the entire genomes of a sample of Cape bees ...
Plants & Animals
Jun 9, 2016
0
308
Ocean acidification could have a major impact on the reproductive behaviour of fish living in affected waters, a new study shows.
Plants & Animals
Jul 26, 2016
0
673
Scientists in China have finally succeeded in creating functioning sperm from mice in the laboratory. To accomplish this feat, the researchers coaxed mouse embryonic stem cells to turn into functional sperm-like cells, which ...
Cell & Microbiology
Feb 25, 2016
2
752
Imagine how easy life would be if you could produce offspring without a mate. Sexual reproduction is the most common mating system in the animal kingdom. But in many species, females do not require males to produce offspring ...
Other
Feb 13, 2015
2
24
The rise of the first complex life depended on vital metals brought up to the Earth's surface from far below in vast granite deposits, a new study argues.
Earth Sciences
Aug 7, 2012
12
0
In the animal kingdom, sperm usually are considerably smaller than eggs, which means that males can produce far more of them. Large numbers of tiny sperm can increase the probability of successful fertilization, especially ...
Plants & Animals
May 25, 2016
2
19
The sensory capacity of male spiders during mating may be higher than previously thought, a study in the open access journal Frontiers in Zoology suggests.
Plants & Animals
Oct 23, 2019
0
118
