In examining the mating rituals of roundworms, researchers uncovered a unique approach to reproduction that maximizes genetic fitness. Sparks fly when a female nematode meets her mate in a Petri dish.

Researchers at Rice University have uncovered new insights into the evolution of bird behavior, revealing why certain mating systems persist while others disappear over time. "This research not only ...

The evolution of sex, gender, mating strategies, and social relationships are hot topics in the study of nonhuman and human behavior. 1 People from many different disciplines are weighing on these and ...

A new study on the mating behavior of jumping bristletail (Petrobiellus akkesiensis) reports the first documented case of direct sperm transfer via genital coupling in apterygote hexapods. The study ...

Researchers find that a 'lost' family of cockroaches may be the missing link in the evolution of insects from prehistoric times to the present day. Often associated with dirty living conditions and ...

While many studies have looked at possible evolutionary links between men's strength and sexual behavior, a Washington State University study included data on women with a surprising result. Women, as ...

BIRD copy 39088002687713 shelved in the serials section under 'Ornithological Monographs' siris_sil_126837 ...

Using computer tomography, insect researchers at the State Museum of Natural History in Stuttgart have analysed the mating ritual of mayflies in detail. A new study on mayflies of the genus Ecdyonurus ...

Hoeven’s wrasse (Halichoeres melanurus) is one of many species of reef fish that begin adult life as females and later switch to being functionally male. UC Davis researchers have shown that ...

Researchers have discovered a bizarre mating strategy in bats with penises so "disproportionately long" that they cannot be used for penetrative sex. The behavior was observed in common serotine bats ...

Sparks fly when a female nematode meets her mate in a Petri dish. Tracking him by smell, she beelines over and is pregnant within moments of physical contact. But for the hermaphroditic version of ...