In a first, physicists have directly seen Hofstadter’s butterfly—a long-sought-after fractal in the quantum realm ...

With its pretty flowers and endearing name, it's no wonder many opt to grow butterfly bush. If you're among them, be aware of ...

“It makes me feel sad since I’ve been seeing butterflies since I was little so it will just be a lot of memories ... “I like how sometimes the butterfly will land on you and they’re ...

In the United States, perhaps no bug has been counted as often as the butterfly ... we see declines that are so widespread spatially and across traits, it’s really apparent that a lot ...