It's been an unusually hot fall in Texas, and that may explain why the iconic southbound march of the monarch butterfly ...

A broken wing almost ended a monarch butterfly's journey on Long Island, but a wing transplant gave it a second chance to fly ...

Local Monarch butterfly expert Karen Oberhauser discusses migration to Mexico, population decline and the push to make ...

In New York, veterinarians at the Sweetbriar Nature Center helped a monarch butterfly live on by performing a wing transplant ...

The monarch butterfly, known for its bright orange patterned wings, is in the middle of its migration from the northern U.S. to Mexico. Once the migration is complete, the species will not be seen in ...

An injured monarch butterfly was given a second chance at life after undergoing a delicate wing transplant at a Long Island ...

There are some major differences between the monarch butterfly's fall and spring migrations. Here's everything you need to ...

You see monarch caterpillars, you see monarch butterflies — but why don't you see a monarch chrysalis? Here's what makes them ...

Anurag Agrawal, an ecology and evolutionary biology professor at Cornell University, gave a talk about monarch butterflies and the ecological disasters that they highlight in the University of ...

A monarch butterfly’s life was saved after one of its broken wings was repaired with the help of a New York nature centre.

PACIFIC GROVE — Monarch butterfly numbers are down this year entering prime counting season, but experts aren’t panicking yet. “Butterfly populations are bouncy,” said Isis Howard, an endangered ...

The U.S. Fish and Wildlife Service proposed Tuesday adding the iconic monarch butterfly to its list of federally endangered species. Public comments will be accepted through mid-March on the proposal ...