The Karner blue butterfly, once on the brink of local extinction, is making a remarkable recovery in upstate New York.

When Ray Hatfield was about six years old, he became fascinated with the natural world and began collecting butterflies and ...

The state Department of Fish and Wildlife announced last week it is proposing to classify a local San Juan Islands butterfly ...

The blobfish, described as the world's ugliest animal, has been voted fish of the year in New Zealand. The creature, which grows to about 12 inches (30cm) long, is known affectionately as Mr ...

Near a village in northeastern India, a “dwarf”-like creature with a “large” mouth swam through the river — or tried to, at ...

A kaleidoscope of orange-and-yellow monarch butterflies soon will return ... as a threatened species under the Endangered Species Act," the U.S. Fish and Wildlife Service said in a March 18 ...

A new study compiling butterfly surveys across the country found a 22% overall decline, while seven species found in Maine ... a Washington Department of Fish and Wildlife ecologist, the lead ...

The California Academy of Sciences used genetic testing to identify a blue butterfly species similar to the Xerces species that went extinct and disappeared from the San Francisco coastline.

But for some species, there is still hope. A community of rare fish enthusiasts collect endangered species of freshwater fish from the lakes and springs of East Africa, Mexico and elsewhere ...