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

Climate change is skewing turtle populations by altering hatchling sex ratios. Explore how temperature affects turtles, why ...

Evolution is slow, but with the right experimental set-up—and enough time to spare—you can watch nature do its methodical ...

A new study published in Science shows that these plants—called cycads—use infrared radiation from heat as a signal to ...

This video dives into the world of animals with the most unusual and astonishing breeding habits on Earth. Scientists reveal how each species evolved rituals and reproductive strategies unlike ...

Mark Gurarie is a writer covering health topics, technology, music, books, and culture. He also teaches health science and research writing at George Washington University's School of Medical and ...

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 ...