Onassis, a giant Amazon River turtle, has lived at the zoo since 1969. No one knows exactly how old she is, but she's still curious and healthy.

Research reveals how dams both hinder native fish migration and help control invasive species. Studies track fish movement ...

A controversial idea suggests the ancestors of echidnas were more like the platypus. For the first time, fossil evidence ...

While many of those species are found in places like Africa, South America and Asia, there are those in North America, as ...

Though fire risk is generally lower in the eastern U.S. than out west, Georgia's national forest lands are not immune to ...

Ancient giant crocodiles that rivaled dinosaurs once thrived in North America. A new study led by Hungarian researchers ...

A global study finds mangroves support 700 billion juvenile fish and invertebrates every year, showing their vital role in ...

Researchers examined teeth and skulls of 99 extinct crocodylomorph species and 20 living crocodylian species to reconstruct their dietary ecology and identify characteristics that helped some groups ...

The secret to their longevity could help conservationists better protect species today threatened by extinction.

Most people think of crocodilians as living fossils—stubbornly unchanged, prehistoric relics that have ruled the world's ...

Researchers examined teeth and skulls of 99 extinct crocodylomorph species and 20 living crocodylian species to reconstruct ...

A sea turtle's shell is a masterpiece. A study reveals that marine turtle shells combine flexibility and strength to protect against predators like sharks and stress while optimizing movement. This ...