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.

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 ...

Beluga whales avoid inbreeding by switching partners over time, helping a small, isolated population stay genetically healthy ...

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 have uncovered new insights into the evolution of bird behavior, revealing why certain mating systems persist while others disappear over time. Researchers at Rice University have ...

As animals go about their lives ― eating, fighting, having babies ― they don’t always follow the script laid out for them by ...

We've compiled a list of weird animal behaviors we've amassed from the wild world web!

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 ...

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 ...