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

Scientists discovered that a subtle behavior by the female of the species dictates whether the quick-fire procreation process ...

A wave of tarantula sightings might occur in the next few months across portions of the U.S. as mating season begins. The secretive spiders are rarely seen – except during mating season. The hairy ...

These three bird courtship displays are so bold, precise and theatrical that they make human romance look a little ...

For a small number of animals, reproduction marks a biological endpoint rather than a stage in an ongoing life cycle. Death ...

The side-splotched lizard (*Uta stansburiana*) is a common reptile found in California, United States. In spring, the color ...

Understanding the evolution of insect mating behavior is essential for explaining how early insects adapted to life on land.

They pretend they’re dead and use a variety of other tactics to avoid the advances of overeager males, proving they’re not defenseless and passive. By Elizabeth Preston Some male frogs cannot take a ...

The white-handed gibbon comes closest to humans in the study, with a monogamy rate of 63.5%. It’s the only other top-ranked ...