Rank in social hierarchy is a condition not solely claimed by humans. In the animal kingdom, male peacocks exhibit brightly colored plumes to illustrate dominance, and underwater, male fish show pops of bright colors to do ...
Evolution
Nov 10, 2020
0
1436
Evolutionary and developmental biologist Craig Albertson and colleagues at the University of Massachusetts Amherst report that they have identified a molecular mechanism that allows an organism to change the way it looks ...
Cell & Microbiology
Jul 28, 2020
0
53
What is important when you choose a home? Space, security, light—or a combination of these? Like humans, animals make choices about where to live that have important implications for their livelihoods. But unlike humans, ...
Plants & Animals
May 19, 2020
1
198
Fish will mate with a species outside their own if the male's colouring is attractive enough or if the female can't see him properly, according to new research.
Plants & Animals
Dec 3, 2019
7
1446
A team of researchers at the University of Burgundy has found that a certain type of monogamous female fish exhibits a pessimistic bias when separated from its mate. In their paper published in Proceedings of the Royal Society ...
An unspoken frustration for evolutionary biologists over the past 100 years, says Craig Albertson at the University of Massachusetts Amherst, is that genetics can only account for a small percentage of variation in the physical ...
Evolution
Aug 1, 2017
5
3516
(Phys.org)—A trio of researchers with the University of Bern in Switzerland has found that at least one species of fish communicates with others of its kind using chemicals in its urine. In their paper published in the ...
Cichlid fish from a tiny volcanic crater lake in Africa have been caught in the act of sympatric speciation, whereby a new species evolves when there is no geographic barrier to physically separate the new species from the ...
Plants & Animals
Dec 18, 2015
5
147
With intruders lurking everywhere, the volcanic crater lakes of Nicaragua can be a dangerous place to raise a family, especially if you're a fish.
Plants & Animals
Aug 18, 2015
0
40
For many male African cichlid fish, the best way to attract a mate is to build a really nice pit or sand castle on a lake bottom.
Evolution
Mar 19, 2015
0
42
