These creatures stood over six feet tall and weighed up to 500 pounds. For more than 100 years, scientists have been trying to locate skull fossils of the birds without success. In the past ...

Bird fossils from that time period are very rare ... It is very old, very small, and had zany little feet,'' he explained. ''The age is between 62.2 and 62.5 million years, just a geological ...

The identification of part of the fossilized remains of a so-called "terror bird" species in South America has given ...