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 ...

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.

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

Understanding the evolution of insect mating behavior is essential for explaining how early insects adapted to life on land. A new study examines Petrobiellus akkesiensis, a rare jumping bristletail, ...

A new study posits that same-sex sexual behavior developed to help primates in complex social groups ease tension, reduce ...

Understanding the evolution of insect mating behavior is essential for explaining how early insects adapted to life on land. A new study examines Petrobiellus akkesiensis, a rare jumping bristletail, ...

Primates form same-sex sexual behavior alliances to gain rank and mating opportunities Male primates use same-sex bonds as ...