Monarch caterpillars eat 200 times their weight in milkweed and can devour a whole leaf in less than 5 minutes. Monarch butterflies are poisonous to predators because of the chemicals in the milkweed ...

Monarch caterpillars eat 200 times their weight in milkweed and can devour a whole leaf in less than 5 minutes. Monarch butterflies are poisonous to predators because of the chemicals in the milkweed ...

Watch a Monarch caterpillar go through metamorphosis and become a gorgeous butterfly. In this awe-inspiring timelapse, we see ...

Butterfly collections are a common sight in museums, their brightly colored wings and unique patterns drawing the eyes of ...

Migratory monarch butterflies entered the International ... and natural enemies such as predators, parasitoids, and diseases. A changing climate is making some habitat less suitable and forcing ...

That cost may be worth it for monarch butterflies because the benefit of being noxious to predators is so much more valuable, Whiteman says. Tina Hesman Saey is the senior staff writer and reports ...

In a turn of events, the eastern monarch butterfly population — which was put on the list of endangered species just a few years ago — nearly doubled this year, according to a March report ...