The Trump administration has delayed a decision on whether to extend federal protections to monarch butterflies indefinitely.

Monarch butterflies are now listed as endangered. Lily Allen sang on Saturday Night Live and viewers were less than impressed ...

An international team of scientists have identified nine new species of butterflies using a combination of geographical, ...

The shift from warm summer to cool fall conditions can be stressful for many animals. Surviving each season requires a ...

Van der Heide got her start at Cal Poly, tagging monarchs by numbering their wings in Sharpie and trying to find them later ...

An international collaboration to track individual monarchs kicked off this fall, including James Madison University.

Moths sometimes drink the tears of other animals, but the behavior has mostly been observed in the tropics. New photographs ...

A prairie butterfly shifts color, behavior, and eye biology across seasons. Sunlight and air guide how it moves and senses ...

An Arkansas study into Buckeye butterflies found that they aren’t just changing colors with the seasons, but changing the way ...

Some California cities have oddly specific rules, including some in Monterey County. Here are some of the oddest the state has written into law.

Tiny solar-powered radio tags are allowing scientists to track individual monarch butterflies for the first time, documenting the paths they take on their migration across North America. The World’s ...