Males engage in a two-week-long sex marathon with as many females as they can find. Each frenzied encounter can last up to 14 ...

Some animals form lifelong pair bonds that run deeper than simple mating. These connections shape how they live, move, and ...

Some animals reproduce only once before dying. This life strategy, called semelparity, sees organisms channel all energy into ...

Some people say love is deadly, but in the animal kingdom, it’s not just a metaphor. For a few unlucky creatures, sex is literally their final act. You might be wondering: why would any animal evolve ...

When it comes to animals romancing in the wild, things get weird—really weird. Some animals offer bizarre gifts, some put on daring dances, and others? Well, let’s just say things get really messy.

Sexuality and gender are often at the forefront of cultural and political debate today. In his new book, The Sexual Evolution: How 500 Million Years of Sex, Gender, and Mating Shape Modern ...

In 1989, paleontologist Darren Tanke suggested that similar breaks were the result of mating as one dinosaur mounted the ...