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 ...

Researchers have discovered a surprising asymmetry in the mating behavior of unicellular yeast that emerges solely from molecular differences in pheromone signaling. Their results might shed new light ...

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 ...

A new study reveals that behavioral isolation between populations of Bahamas mosquitofish is driven primarily by the actions of females – not just ...

Humans don’t have a defined mating season like deer or wolves. Here’s how evolution blended biology, culture and social life into year-round intimacy.

Western mosquitofish, pictured here, are known as the "plague minnow" due to their aggressive impact on native habitats when introduced. For decades, ecologists have known that how a species looks or ...

1. Mormon Crickets and Mating Meals -- 2. Katydids, Longhorns, and Bush-Crickets: Diversity and Evolution of the Tettigoniidae -- 3. What Katy Did: Habits and Life Cycles of Tettigoniids -- 4.

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 ...