A recreation of what the Basilosaurus Isis may have looked like. Photo: iStock.

A new study conducted by scientists has revealed the diet of an ancient sea predator that is referred to as the ‘King Lizard.’

For years, scientists presumed that the 15-meter-long Basilosaurus Isis was a scavenger species.

But recent research shows that the creature was, in fact, a predator that hunted live prey while packing a bite with over 1,000 kilograms of force, The Sun reported.

According to the experts at the Museum fur Naturkunde in Germany, the Basilosaurus was a top predator that hunted huge animals as prey.

The proposition was made when a fossil of this creature was found in Cairo, the Egyptian capital. The contents of its stomach were probed and revealed remains of sharks and bony fish.

Infant bones of an ancient whale were also found. Most of the fish and other smaller remains were spread around the Basilosaurus’ stomach and showed bite marks and signs of brutal snaps. Bite marks on the prey’s skulls indicate that they were eaten live and not scavenged after death.

Also, the Basilosaurus was initially thought to be a reptile but it has since been identified as a whale-like creature.