An international team of researchers from the Max Planck Institute for Evolutionary Anthropology in Leipzig, Germany, conducted behavioral observations and collected urine samples for cortisol analysis of male chimpanzees ...
Plants & Animals
Apr 5, 2019
0
66
When it comes to wooing the 'ladies," it turns out male bottlenose dolphins seem to employ similar tactics to some human groups.
Plants & Animals
Mar 5, 2019
0
11
What factors sustain the diversity of life on our planet? This is the main question surrounding the study of biodiversity, but in spite of significant gains in our understanding of the field, many of the key factors defining ...
Plants & Animals
Nov 21, 2018
0
3
In a study published in Behavioral Ecology researchers from Uppsala University show that the same type of sperm is not always the best for all male birds. Depending on how attractive or dominant you are you might be more ...
Plants & Animals
Aug 16, 2018
0
6
We all know that individuals fight over potential love interests. Just think of Daniel Cleaver (Hugh Grant) and Mark Darcy (Colin Firth) scuffling – rather impotently – over Bridget Jones in a fountain. But you might ...
Plants & Animals
Feb 15, 2018
0
39
In zebra finches, sperm velocity and morphology and hence reproductive success strongly depend on a specific mutation (an inversion) on one of the sex chromosomes, called Z. This was discovered by scientists of the Max Planck ...
Plants & Animals
Jul 17, 2017
0
135
That males are naturally promiscuous while females are coy and choosy is a widely held belief. Even many scientists – including some biologists, psychologists and anthropologists – tout this notion when interviewed by ...
Other
Jan 20, 2017
2
70
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
Males who evolve in male-dominated populations become far better at securing females than those who grow up in monogamous populations, according to new research into the behaviour of fruit flies at the University of Sheffield.
Plants & Animals
May 5, 2016
1
324
Promiscuity could reduce benefits of successful mating, research shows.
Plants & Animals
Jan 19, 2016
0
24
