Why do females cheat on their partners? A new study of songbirds in the US – published today – suggests cheating females are more successful in the long-run and get more grandchildren. Why? Because the…

Sex is often viewed as a totally harmonious interaction between a male and female with the same innate goal – to produce offspring. But it is becoming increasingly clear to biologists that the reproductive…

It’s the sort of news conservative politicians and commentators latch on to as a sure-fire sign that the end of civilisation is nigh: marriage rates are in continuing decline. But is this really such a…