A plump caterpillar hangs upside down, and seconds later a monarch butterfly pumps its wings to life. This timelapse captures ...

Add Yahoo as a preferred source to see more of our stories on Google. We have been encouraging our backyard milkweed to grow ever since we moved over five years ago. I have friends who have issues ...

Monarch butterflies are preparing to migrate south soon. Here's how to see them in Missouri before they leave for the winter.

Monarch butterflies, with their striking orange and black wings, are some of the most recognizable butterflies in North America. But they're in trouble. Monarch caterpillars can only eat the leaves of ...

A trio of German entomologists has found that young monarch caterpillars switch from avoiding milkweed-toxin-rich latex to eating it as they get older. Their paper is published in the journal ...

Southern California residents were encouraged on Wednesday to report sightings of western monarch butterflies as part of an ...

As western monarch butterflies prepare to retreat to groves along the California coast for the winter, conservationists are ...