Kermit Sutra? A recent discovery reveals a new sexual position used by frogs when mating.
A newly released study found that sexual pleasure actually increases as we grow older, but could be more at risk of sexually transmitted infections.
At an average, the same-sex copulation last for about 85 seconds. Scientists reveal that the female wild primates turn to each other when male gorillas reject them for sexual stimulation.
A new study reveals that same-sex sexual behavior actually has evolutionary advantage.
Male Darwin's Bark Spiders, who are 14 times smaller than the gigantic females, routinely salivate onto female arachnid genitalia, pre-, during, and post-copulation.
Aggression is fairly common among primates, but a lethal attack among Bornean female orangutans was documented for the first time in a recent study.
Promiscuous male crickets ultimately reduce their chances of having a child due to sperm competition -- as their partners will also mate with many other males.
Among the insects known as burying beetles, females are more attracted to smaller males because they are, you know, chill. That is, they're less likely to get into fights when competing for mates. Despite their increased sex appeal, however, smaller males are not necessarily better parents, researchers reveal in a new study.
Paleontologists suggest recently discoverd foot scrapes across several Colorado outcrops were made by large dinosaurs that competed in dance-offs to woo their mates.
Sexual cannibalism is common among many species. But a new study is challenging the belief that female spiders attack their mates after sex because they can't control their aggressiveness, and instead suggests females are testing males so that they can weed out the weak ones.
While bonobos are often regarded as a less sophisticated species than their close chimpanzee relatives, researchers have documented for the first time that the animals are actually able to create stone tools and weapons like chimpanzees and early humans did.