Dinosaurs were not only the biggest animals to wander the Earth -- they also had a better number of bigger species compared to all other ba...

A new dinosaur unearthed in Wyoming had such great teeth that its jaws continually looked to be smiling an enormous grin. Kaatedocus had...

Spinosaurus was the largest of all the carnivorous dinosaurs , bigger than Tyrannosaurus and Giganotosaurus. It lived during the center of ...

From tiny trilobites to immense dinosaurs , a wonderful array of creatures has lived on Earth over the past 4 billion years. Deep in the ea...

Critics of the Endangered Species Act contend it is a failure because only 1 percent of the species under its protection have recovered and...

Bracken and Brown University student Natalie Low conducted several experiments that analyzed the impact of removing seaweed and sessile ani...