Norwegian researchers show that the sperm of Arctic char, a cold-water fish common to alpine lakes, swim at different speeds in different fluids, depending on whether the fish are dominant or submissive. The finding published ...
Okayama University researchers confirm the role of mate-guarding in males for blocking the female's visual familiarity with rival males to improve mating success in a medaka fish model.
In the world of chimpanzees, being the alpha male definitely has its benefits and, as with humans, it's good to have powerful friends.
Spanish police were on Tuesday investigating the decapitation of a European bison and the disappearance of three others from a nature reserve which was set to start a breeding programme for the species.
"Survival of the fittest" usually means that animals put their own needs first, but occasionally it pays to work together. A new study in The Auk: Ornithological Advances describes an unusual example of cooperative breeding ...
Colour-changing fish have only one skin, but they use it to communicate social status, attract mates, avoid predators and more. So what happens when those functions collide?
Ocean acidification could have a major impact on the reproductive behaviour of fish living in affected waters, a new study shows.
Selective expression of genes through epigenetics can regulate the social status of african cichlid fish
For a small African fish species, a colorful dominant male does better in life, winning access to food and females. New research by Stanford biologists suggests that this lucky outcome is regulated at a genetic level, by ...
A school of 10 whales that washed up Monday in northern France may have done so voluntarily after the death of the dominant male, an expert said.
New research has shown that badgers, one of Ireland's most iconic wild creatures, roll the dice in their sex lives to gain an all-important edge in the game of life.