This illustration provided by the Carnegie Museum of Natural History on March 18, 2014 shows the dinosaur Anzu wyliei. The birdlike animal, about 7 feet tall, weighed an estimated 500 pounds when it ... more 
This illustration provided by the Carnegie Museum of Natural History on March 18, 2014 shows the dinosaur Anzu wyliei. The birdlike animal, about 7 feet tall, weighed an estimated 500 pounds when it roamed western North America around 66-68 million years ago. Nicknamed the "chicken from hell," the creature was formally introduced with an official name to the scientific community Wednesday, March 19, 2104 as scientists published a description and analysis of its anatomy. (AP Photo/Carnegie Museum of Natural History, Mark Klingler) less 
1 / 1
Associated Press | Photo By Carnegie Museum of Natural History, Mark Klingler
Wed, Mar 19, 2014 5:03 PM EDT