Tiniest dinosaur in North America found

The tiniest dinosaur in North America weighed less than a teacup Chihuahua, a new study says. Seen above as an artist's reconstruction in front of a Tyrannosaurus rex skull at the Natural History Museum of Los Angeles County in California, the agile Fruitadens haagarorum was just 28 inches (70 centimeters) long and weighed less than two pounds (one kilogram).