In just the last decade, the U.S. has officially declared five species extinct, marking a tragic loss for biodiversity. Once ...

The wolves were captured from and released back to three packs in Siskiyou, Lassen and Sierra counties, state wildlife ...

With sharp catlike teeth and a doglike body, ancient carnivores called hyaenodonts were once at the top of the food chain, ...

Some animals seem to defy the laws of nature, and scientists are still puzzled by how they survive. From creatures with ...

The field of paleo-inspired robotics is opening up a new way to turn back time and studying prehistoric animals. What will ...

A species of grasshopper native to Appalachia, believed to be extinct, was spotted last year in Augusta County. It’s among several rare and never before seen plants and animals that were discovered in ...

All animals live in or seek a set of climate conditions they find tolerable. This "climate envelope" partially determines ...

Once common in Monteverde, Costa Rica, the Golden Toad is thought to have been extinct as a result of climate change, as it was last observed in 1989. The Tasmanian tiger, also known as the Thylacine, ...

In the constant war between predator and prey, size and strength can be a decisive factor to help an animal survive the cruel whims of nature. AZ Animals is a growing team of animals experts, ...

The mantis shrimp’s eyes are incredibly colourful and sophisticated, with the ability to see ultraviolet light and a spectrum we can’t imagine. Snow leopards have piercing golden eyes that ...

Finally, the team discovered that today’s genetic code likely came after other codes that have since gone extinct. The authors argue that the current understanding of how the code evolved is flawed ...

Though it has long since gone extinct, the thought of this massive reptile inspires ... Often underestimated, the hippopotamus is one of Africa’s most dangerous animals. Weighing up to 3,300 pounds ...