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 ...

How do male mating behaviors evolve in response to a competitive social environment? Using an experimental evolution approach, Dore et al. demonstrated that sociosexual environments can lead to the ...

A new study comparing 59 species of primates linked same-sex sexual behavior to scarce resources and more predators in socially complex species. The findings show diverse sexual behaviors are common — ...

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 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 ...

Showy male competitions over mating privileges have grabbed scientists’ attention more often, but new work hints that sexual selection is also widespread among females. As the midday sun hangs over ...

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 ...