Monarch butterflies definitely need to fly well to complete their annual fall migration of up to 3,000 miles. "It's one of the most famous migrations of any insect in the world.

The monarch butterfly is a beautiful and colorful creature, but it takes a while to reach that part of its adult life.

As they cross the Mediterranean, which extends about 500 miles north-south, favorable winds can help the butterflies fly faster or higher. One entire migratory cycle from central Africa to the ...

The rounded profile of a bird’s wing creates an airfoil, which generates lift and allows the bird to fly. But butterfly wings are flat. How do butterflies fly?

Walton blames the use of herbicides and pesticides for the decline in the monarch butterflies. If cattle eat milkweed, it can ...

When butterflies not native to South America appeared on a beach in French Guiana, entomologists started sleuthing to prove where they came from—and how they might have got there.

Every fall, an incredible migration occurs through the state of Indiana, where millions of tiny monarch butterflies fly on their way to overwintering grounds in Mexico, only to return in the ...

Monarch butterflies definitely need to fly well to complete their annual fall migration of up to 3,000 miles. "It's one of the most famous migrations of any insect in the world.