Top 5 most ruthless predators

5. Xenotarsosaurus

Xenotarsosaurus was an epic predator from South America.

Like other dinosaurs, Xenotarsosaurus laid eggs.

Only one specimen has been found.

4. Metriacanthosurus

This savage murderer lived 160 million years ago.

It was once thought to have been a type of megalosaurus, but it has now been proven to have been a separate species.

However, it was still very vicious.

3. Proceratosaurus

At 9.8 feet long, Proceratosaurus wasn't the largest hunter, but it was still gruesome.

Proceratosaurus was a relative of Tyrannosaurus.

It lived in Jurassic Britan 166 million years ago.

2. Ornitholestes

Ornitholestes was a 2 meter-long devious predator.

Its name means bird eater.

It is unlikely that it ate birds as no bird skeletons have been found near Ornitholestes.

1.  Yangchuanosaurus

Yangchuanosaurus was a ferocious metricanthosaurid dinosaur.

It ate meat.

Yangchuanosaurus was discovered in China.