Population benefits of sexual selection explain the existence of males
New research from the University of East Anglia shows that an evolutionary force known as 'sexual selection' can explain the persistence of sex as a dominant mechanism for reproducing offspring.
Sexual selection isn't the last word on bird plumage, study shows
In the world of bird fashion, the guys seem to have all the fun: brighter feathers, sharper accessories, more pizzazz.
'Most attractive' male birds don't have the best genes
'Attractive' male birds that mate with many females aren't passing on the best genes to their offspring, according to new UCL research which found promiscuity in male birds leads to small, genetic faults ...
Desires of microscopic shrimp illuminate evolutionary theory
A nighttime light display on a coral reef in the Florida Keys sparked a study that provides novel insight into the factors that drive the evolution of new species.
Research finds clue to why females live longer than males
A study from the University of Exeter has found that male flies die earlier than their female counterparts when forced to evolve with the pressures of mate competition and juvenile survival. The results could ...
Female color perception affects evolution of male plumage in birds
The expression of a gene involved in female birds' color vision is linked to the evolution of colorful plumage in males, reports a new study from the University of Chicago. The findings, published Nov. 26 ...
Males of great bustard self-medicate to appear more attractive to females
Males of great bustard consume small doses of poison with a dual purpose: to eliminate intern parasites and, especially, to look healthier and stronger before females, allowing them to achieve a greater reproductive ...
Secret wing colours attract female fruit flies
Bright colours appear on a fruit fly's transparent wings against a dark background as a result of light refraction. Researchers from Lund University in Sweden have now demonstrated that females choose a mate ...
New 'tree of life' traces evolution of a mysterious cotinga birds
They are some of the brightest, loudest, oddest-looking, least-understood birds on the planet. Some have bulbous crests, long fleshy wattles, or Elvis-worthy pompadours in addition to electric blue, deep purple, or screaming ...
Peacock's train is not such a drag
The magnificent plumage of the peacock may not be quite the sacrifice to love that it appears to be, University of Leeds researchers have discovered.
How rockstars and peacocks attract the ladies
What is it that makes rockstars so attractive to the opposite sex? Turns out Charles Darwin had it pegged hundreds of years ago – and it has a lot to do with peacocks.
Biologists link sexual selection and placenta formation
Sexual selection refers to species' selection for traits that are attractive to the opposite sex. This special type of natural selection enhances opportunities to mate, the tail of male peacocks being an ...
When genes play games: Algorithm helps explain sex in evolution
What do you get when you mix theorists in computer science with evolutionary biologists? You get an algorithm to explain sex.
A new type of heredity described in Paramecia
Considered as an obsolete theory for many years, the transmission of acquired traits has returned to the forefront of debate thanks to the development of epigenetic research. In this context, a team from the Institut de biologie ...