The Reason These Poisonous Butterflies Don’t Mate Is Written in Their DNA

About a decade ago, evolutionary biologist Richard Merrill would spend several hours a day in “hot, steamy Panama,” sitting in a cage filled with Heliconius butterflies, waiting for them to have sex. Continue reading The Reason These Poisonous Butterflies Don’t Mate Is Written in Their DNA

Burpees are hard to define, and that’s what makes them good

Recently, a video circulated online depicting Australian trainer, Elizabeth Llorente, performing 1,490 reps of a movement the Guiness Book of World Records people call “burpees”. Many people in the fitness community loudly disagreed. And while general consensus seems to be that the Guiness standard is lacking, it raises the question: What exactly is a burpee and what purpose does it serve? Continue reading Burpees are hard to define, and that’s what makes them good