Scientists find where butterflies first evolved

Researchers found that butterflies first appeared somewhere in central and western North America 100 million years ago.

At last, butterflies get a bigger, better evolutionary tree

Life Cycle of a Butterfly Lesson for Kids - Video & Lesson

Butterfly - ブーツ

Butterfly - ブーツ

Butterfly

Butterfly - Bath & body

Butterflies Forty Million Years Before Butterflies

DNA tells story of butterfly evolution – Research News

What are some theories on how the life cycle of a butterfly

Monarch Butterfly National Wildlife Federation