It's easy to assume all animals have a neat dividing line between the sexes because the differences in appearance between males and females can be so striking. But the more scientists learn about wildlife, the clearer it ...
Plants & Animals
Sep 28, 2022
0
3
Researchers—led by the University of York's BioArCh team—developed a new approach to analyze amino acids, the building blocks of proteins, from 17 adult skeletons found in the aftermath of the eruption of Vesuvius in ...
Archaeology
Aug 25, 2021
0
1115
Female fish in the Bahamas have developed ways of showing males that "No means no."
Evolution
Aug 19, 2015
0
85
A plentiful supply of yellow perch was once available in the U.S. Great Lakes region, but that changed in the 1990s. Populations of this Midwest fish-fry favorite dropped dramatically due to the invasion of the zebra mussel, ...
Plants & Animals
Jun 3, 2014
2
1
Research from the University of Adelaide has found that some species of fish will have higher reproductive capacity because of larger sex organs, under the more acidic oceans of the future.
Ecology
Dec 30, 2020
9
375
If you were given the option to eat a delicious meal by yourself, or share that meal with your loved ones, you would need a very good excuse ready if you chose the former. Turns out, fish share a similar inclination to look ...
Plants & Animals
Mar 19, 2021
0
1011
A team of researchers at Charles Darwin University, in Australia, has found that male fish that mouth-brood are not always guaranteeing that the eggs they carry were fertilized by them. In their paper published in the journal ...
(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 ...
(Phys.org)—Professor Charles Tyler of the University of Exeter in Britain (and colleagues) has conducted a study of the impact of chemicals from human waste treatment plants in rivers and streams on the fish that live in ...
In an unusual mating strategy, hard-up males of a tiny, promiscuous fish species engage in homosexual acts in a bid to entice females to copulate with them, a study said Wednesday.
Plants & Animals
Dec 12, 2012
1
0
