Fossils of a whale inside a whale, eaten by a shark discovered in Egypt.

We’re living in a whale-eat-whale world.

The remains of a 40-million-year-old whale, with another whale trapped inside of it that researchers believe was then eaten by sharks has been discovered by scientists in Egypt, the Huffington Post reports.

The fossils were discovered at Wadi al-Hitan, a UNESCO World Heritage site that is commonly known as “Whale Valley” located southwest of Cairo.

The smaller whale that was found inside the fossils of the 60-foot-long basilosaurus is likely to have been a fetus, but since the basilosaurus had pretty interesting eating habits, it’s debateable. The long-gone predator was also known to eat other whales, comparable to today’s orcas.

Relics from other sea creatures were also found inside the whale, such as crab and sawfish, the Cairo Post reports. Large bits of shark teeth were found next to the whale’s skeleton, showing evidence that sharks likely ate the whale after it died.

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The fossils include the smallest vertebras of the tale making it the only complete basilosaurus skeleton in the world, Environment minister Khaled Fahmy told the Cairo Post.

The remains of 10 whales have been found at Whale Valley since its discovery in 1902.

Whale Valley is also home to the remains of the wiped-out suborder of whales known as Archaeoceti, says UNESCO, which shows the evolution of the whale from a land-based animal into an ocean-roaming one.

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Basilosaurus means “ruling lizard,” according to Drexel University. The large whale was once thought to have been a marine reptile when it was first discovered by naturalist Richard Harlan in the 1830s.

It has since been realized that it was a marine mammal, but by that time, the name basilosaurus had already stuck.