North American species like the Colorado potato beetle and the fall armyworm have become invasive elsewhere. Illustration by Marilyn Foehrenbach Q: In North America, we worry about invasive ...

The largest of all North American frogs, this giant can grow to a length of 8 inches or more and weigh up to 1.5 pounds. Even the tadpoles of this species can reach 6.75 inches in length.

Out of 472 species of bees studied in Canada and the ... The study is the most comprehensive look at North American pollinators and their conservation status to date, John Klymko, scientist ...

But what has been the toll on wild birds? More than 170 species of North American wild birds – including ducks, geese, gulls, owls, eagles and others – have been infected with bird flu.

WASHINGTON— The U.S. Fish and Wildlife Service announced today that the American ... north as North Dakota and Maine. They buzz across a wide range of open habitats, where they forage on a variety of ...