The fossilized leg bone of the terror bird went unidentified for almost 20 years. Nearly 12 million years ago, the largest ...

Learn about the giant clam's new critically endangered status and the urgent efforts to protect this marine giant.

The island of 'Eua is pictured here. Scientists believe there's a chance that the extinct giant ... [+] Tongan ground skink may still inhabit these forests. The original specimens were found on ...

Scientists say a giant fish in the Mekong River thought to be extinct has been spotted three times in recent years WASHINGTON -- A huge fish in the Mekong River thought to be extinct has been ...

Once abundant, the massive, colorful clam is now locally extinct in many regions, with a critical drop in population due to overfishing and climate change. The giant clam, known for its colorful ...

One of the most interesting things in the photo is the surrounding landscape, which varies on either side of the giant ...

The more scientists study the Red Planet, the more they find unusual objects and patterns scattered across Mars' surface. Here are some of the most baffling.

giant snails and fist-size, cricket-like insects, large chameleons, emerald green snakes, and red rats. The lemur-eating fossa—a wiry, thin-coated mammal with retractable claws that resembles ...

While all the aforementioned species are suitable for large outdoor habitats, the Giant Leaf Insect, on the other hand, is an exhibit animal and easily one of the best in the game. However ...

A huge fish in the Mekong River thought to be extinct has been spotted three times in recent years. "The giant salmon carp is like a symbol of the Mekong region," said Chheana Chhut, a researcher ...

In July, the National Oceanic and Atmospheric Administration (NOAA) proposed listing 10 giant clam species —including T. gigas—under the Endangered Species Act.