Environmental groups are asking the U.S. government to do more to protect grizzly bears in Wyoming, Montana and Idaho.

Yellowstone National Park this week cautioned that while most bears are hibernating, winter visitors should still carry bear ...

The United States is moving to grant federal protections to the monarch butterfly — a once-common species recognisable by its ...

There are flecks of gold that flutter into Yellowstone National Park each spring. The tiny Wilson’s warbler, with its bright ...

Do you have a picture from paradise you’d like to share with Tropicalia readers? We’d love to print it. Email photos to ...