Research shows male guppies reproduce even after death

Performing experiments in a river in Trinidad, a team of evolutionary biologists has found that male guppies continue to reproduce for at least ten months after they die, living on as stored sperm in females, who have much ...

Promiscuity may have accelerated animal domestication

Domestication of wild animals may have accelerated as promiscuity increased among the high density populations drawn to life near humans, according to a new paper by University of Liverpool researchers.

Sex differences in personality traits in Asian elephants

Scientists from the University of Turku, Finland, have found that male and female Asian elephants differ in their personality. Previous work on a timber elephant population from Myanmar has shown that Asian elephants have ...

How did the patriarchy start? And will evolution get rid of it?

The patriarchy, having been somewhat in retreat in parts of the world, is back in our faces. In Afghanistan, the Taliban once again prowl the streets more concerned with keeping women at home and in strict dress code than ...

Males help keep populations genetically healthy

A few males are enough to fertilize all the females. The number of males therefore has little bearing on a population's growth. However, they are important for purging bad mutations from the population. This is shown by a ...

Study forces a rethink on population history of Ibiza

Otago researchers have discovered a rare case of genetic population discontinuity on the Mediterranean Island of Ibiza. Essentially, the original genetic signature of the founding female population, handed down through centuries ...

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