Finding a mate is hard in the animal kingdom! As these strangest animal mating rituals show, it sometimes gets even more complicated after you do.

Mating calls and rituals can be intercepted, or drowned out, by invasive species. Scientists are just starting to understand ...

Evolutionary biologist Nathan H. Lents details how animal relationships can offer perspective on sexual diversity, social monogamy and gender identity—for humans.

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 ...