From glowing jewels to horned giants, these stunning caterpillars reveal nature’s artistry. Explore ten of the world’s most beautiful species before they transform into striking moths and butterflies.

Before metamorphosis, monarch butterflies will aggressively head butt each other for access to their favorite food. By Katherine J. Wu In the 1969 children’s book “The Very Hungry Caterpillar,” the ...

The neon-green caterpillar looked like a sure goner when a big green frog made a sudden move and grabbed the caterpillar in its gaping mouth. But then the frog suddenly dropped the caterpillar as if ...

Retired schoolteacher Tachi Dellinger pointed inside a mesh box, where three green chrysalises hung. “This one is starting to change color,” Dellinger said. “It will turn jet black ... when it's ready ...