Two Devils Hole pupfish. Image by Olin Feuerbacher : USFWS, Public domain, via Wikimedia Commons. The Devil’s Hole pupfish lives in a single water-filled cavern in Nevada, making it one of the rarest ...

In Peru, a pocket of land called Alto Mayo contains roughly 280,000 people and a wide range of biodiversity. During […] ...

The hidden creatures were found in a densely populated region known for its successful—and controversial—conservation tactics ...

From the elusive Glacierfish in Snowcap Island to the Exotic Molten Banshee found in Roslit Volcano, this guide covers where to find the rarest fish and how to catch them. Grab your bait ...

The underwater giants can grow up to 10 feet long and weigh up to 300 kilograms—more than 650 pounds, or about as heavy as a ...

Six critically endangered Mekong giant catfish — one of the largest and rarest freshwater fish in the world — were caught and released recently in Cambodia, reviving hopes for the survival of ...

T he forests of Maui have just become home to the world’s rarest crow for the first time. Five ‘alalā, also called the ...

Six critically endangered Mekong giant catfish—one of the largest and rarest freshwater fish in the world—were caught and released recently in Cambodia, reviving hopes for the survival of the ...

The Devils Hole pupfish is one of the rarest fish in the world, and the underwater cavern is its only natural habitat on the planet. U.S. Fish and Wildlife Service photo by Olin Feuerbacher It ...