Evolutionary theory predicts that the fitness of an individual is maximized when the genetic differences between its parents are neither too small nor too large but some ideal amount known as the optimal mating distance.
A team of researchers from San Diego Zoo's Institute for Conservation Research and the China Research and Conservation Centre for the Giant Panda has found that vocalizations play an important role in the lead-up to copulation ...
Heliconius butterflies are a diverse and colorful group of species that live throughout tropical regions of Central and South America. Many of them have wing patterns and colors that mimic other species to protect themselves ...
Female guppies with smaller brains can distinguish attractive males, but they don't recognise them as being more appealing or choose to mate with them, according to a new study by UCL and Stockholm University researchers.
A team of researchers with the University of Toronto and the University of Stirling has found that male dance flies prefer to mate with females that have larger abdominal sacs. In their paper published in Proceedings of the ...
It is well known that males across the animal kingdom love sex, but does the amount of sex they have change their desire for specific nutrients in their diet?
Scientists once thought that female mate choice alone accounted for the eye-catching color patterns seen in some male fish. But for orangethroat darters, male-to-male competition is the real force behind the flash, a new ...
Self-fertilization is a problem, as it leads to inbreeding. Recognition systems that prevent self-fertilization have evolved to ensure that a plant mates only with a genetically different plant and not with itself. The recognition ...
Sex is costly for insects. It uses up resources such as water, energy and time. Some species, like bush crickets, can ejaculate as much as a quarter of their body weight. In others, like one species of fruit fly, their sperm ...
Sage grouse have a vast network of mating grounds in the U.S. West akin to interconnected regional airport hubs that the imperiled species is using to maintain genetic diversity across its entire range, a DNA study has revealed.
Nov 07, 2018
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