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 ...

Understanding the evolution of insect mating behavior is essential for explaining how early insects adapted to life on land.

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.

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, ...

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 ...

(CNN) — Bats have long been the odd ones out among mammals. They are the only creatures in this branch of the animal kingdom capable of powered flight. Now researchers say they have discovered another ...