The optical illusion inside butterfly wings is similar to the barber-pole illusion. When looking at the red-and-white striped ...

By Marta Serafinko Sept 30 (Reuters) - When a bird lunges at a butterfly in mid-flight, it may see something that is not ...

Fall migration is well underway, and Project Monarch, an app fed by volunteers, scientists and dozens of environmental groups across North America tracks individual butterflies via tiny, lightweight ...

The "butterfly effect" may not mean exactly what you think. Here's the story behind the phrase's creation, along with an ...