Researchers discovered that a 215-million-year-old reptile started life on four legs and switched to two as an adult.

Newly-Named Prehistoric Reptile Roamed Ancient Arizona 215 Million Years Ago In A Nutshell Scientists discovered a new ...

Sonselasuchus cedrus, discovered in fossils from Arizona, was a crocodile relative from the Triassic period that grew into an ostrich-like adult ...

Ever seen a sparrow running around your garden, scurrying around, and wonder if T. rex used to do the same? Well, birds are ...

These birds can act quickly when they feel any danger. Some take flight instantly while others may drop into a defensive ...

Scientists have unearthed a "peculiar" ancient crocodile that walked on two legs – after beginning its life on four. Named ...

Therapist Gee Eltringham shares a helpful analogy to tell the terms apart.

Roughly 215 million years ago, an unusual-looking reptile traipsed around what is now Arizona. About the size of a poodle, the creature had large eye sockets, a toothless beak and short arms. During ...

Here’s something that probably wasn’t on your Arizona bucket list until right now: getting pecked by a bird that’s taller than most professional basketball players. The Rooster Cogburn Ostrich Ranch ...

If someone told you that one of Arizona’s best attractions involves getting intimately acquainted with birds that could ...