A group that wants to make the world's first pornographic film in space has launched a crowdfunding campaign to get the project off the ground.
Male species of the antechinus spend two to three weeks a year in a testosterone-fueled mating marathon.
No sex is required for some mothers in the wild who are reproducing via virgin birth.
Not teaching teenagers the proper use of birth control doesn't prevent them from having sex; it creates a serious public health issue.
Male and female dinosaurs from the same species sported different looks.
The deep-sea dwelling vampire squid could have 100 times more sex than its shallower-residing relatives.
Giant pandas may not be such loners after all, finds a new study that used high tech equipment to stalk the big bears as they went about their daily business. Continue reading →
A lizard's penis evolves six times faster than any of its other parts.
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