A monarch butterfly (Dannaux plexippus) flaps its wings in Piedra Herrada Sanctuary, Mexico. Might this start a chain of events that results in a tornado in Texas? Photograph by Jaime Rojo In 1961, ...

In March 2021, social media users received an ample dose of cuteness when a video supposedly showing a puppy playing with a butterfly went viral: As this video racked up millions of views (and ...

Is the 2004 Ashton Kutcher vehicle The Butterfly Effect a good movie? Definitely not, no—but try telling that to me at age thirteen. And then wrap your head, once more, around the fact that if you had ...

You've probably heard of the ‘butterfly effect’ from the 2004 American sci-fi movie featuring young Ashton Kutcher. But the term stems from the branch of math called chaos theory and is actually ...

For the first time, engineers have created a model that flies just like a real butterfly. Powered only by an elastic band, it flits up and down and flaps its wings languidly – just like the ...

Small changes can have incredibly large and unintended consequences, whether for good or for ill. And no matter how smart you (think you) are, there’s absolutely no way that you can predict all of the ...