Tag archives for sex
After video of kickboxing kangaroos went viral last week, we take a closer look at more of nature’s impressive fighters.
A female fly’s previous sexcapades can have a profound effect on how her future children look, redefining the way scientists think about inheritance in insects.
Bigger males may get a lot of attention, but sometimes being smaller and having a different strategy is more successful when it comes to mating.
In the first identified case of “killer sperm,” females that mate with males of another species can become sterile or even die, a new study says.
A new species of frog with some bizarre mating rituals has been discovered in India, a new study says.
Four new species of cave insects in Brazil have sex-reversed genitalia, a “completely astonishing” discovery, scientists say.
With spring in the air, we answer your questions about animal romance, from elephant seals to stick insects.
It’s a finding fit for Valentine’s Day: Coquerel’s sifakas that have mated and produced offspring alter their natural scents to smell alike, a new study says.
Flatworms that fence with their penises and male fish that literally latch onto their mates are among nature’s most odd and risky mating rituals.
From stone-throwing monkeys to castle-building fish, see the lengths that some species go to please their mates.
Male black widow spiders shake their booties to send friendly messages to females—and avoid getting eaten, a new study says.
Male bone worms use a “penis” on their heads to inseminate females, a new study says.