Add Yahoo as a preferred source to see more of our stories on Google. A monarch butterfly (Dannaux plexippus) flaps its wings in Piedra Herrada Sanctuary, Mexico. Might this start a chain of events ...

Plus, relationship therapists share how the trend can be a tool for mindfulness ...

The long-term effects of climate change suggests that the butterfly effect is at work on butterflies in the alpine regions of North America, according to a new study -- and the predictions don't bode ...

In chaos theory, the butterfly effect describes a small change that can have massive, unpredictable consequences. An insect flaps its wings and, weeks later, causes a tornado. The coronavirus is more ...