A lizard's penis evolves six times faster than any of its other parts.
As you sip your morning cup of Joe just know that one or more creatures likely had sex in it.
A Siberian man who was part human and part Neanderthal is shedding light on when Africans first successfully settled in Europe and Asia...and mated with Neanderthals who were already living there. Continue reading →
What was the first sexual intercourse like? A new study finds it involved fish and looked a lot like a square dance.
Climate change could affect the ratio of human males to human females that are born in some countries, a new study from Japan suggests.
Males with harems have no shortage of fawning females, but maintaining such an arrangement can be exhausting.
It was shaping up to be the ultimate story of horny reptiles, space adventure and high drama. But sadly for the Russian 'gecko sex' space experiment, the story has a very definite anticlimax. Continue reading →
Male goats emit a sexually-stimulating scent that goes right to a female's brain for an immediate turn-on. Continue reading →
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