Soft T-Rex

In 2005, there was an unusual discovery found in Montana. Twenty-four different kinds of dinosaurs were uncovered in this one place. One kind was different than all of the others. Most dinosaurs that are discovered are just bones. This dinosaur still had soft tissue. It had cells and blood vessels. This was not known when the dinosaur was first discovered. A scientist discovered it when she examined it in the lab. B

efore this discovery, scientists never thought that tissue in bones could survive more than 100,000 years. The scientists tested the bones. They found that they were 68 million years old. This was the oldest dinosaur ever discovered with tissue.

This type of tissue is found in bones of birds when they are ready to make eggshells. It contains calcium. It is found when birds are ready to lay eggs. The scientists realized they had found a female dinosaur. This dinosaur had laid eggs. The eggs from this dinosaur were very much like bird eggs today.