Mystery surrounding giant ‘heron from hell’ dinosaur and how it devoured prey finally cracked in new study

A NEW study could finally end a long debate regarding a giant dinosaur known as the “heron from hell.”

The creature’s scientific name is the Spinosaurus aegyptiacus and it’s caused debate for years.

Scientists have long debated about how this dinosaur hunted its preyCredit: Daniel Navarro
Researchers invited the density of the dinosaur’s bonesCredit: Stephanie Baumgart and Evan Saitta

That’s because scientists can’t agree on how the Cretaceous-era dinosaur hunted its prey.

The giant predator is thought to have been one of the largest to walk the Earth.

It ate all sorts of prey and was adapted to hunt in the water.

Whether it dived deep for its meals or stayed very close to the surface is still being debated today.

A team of scientists recently examined bones from a specimen of the Spinosaurus aegyptiacus to try and crack this mystery once and for all.

Paleontologists from the University of Chicago led the research.

The study has now been published in the PLoS ONE journal.

A team of researchers looked into the creature’s bone density and found it wouldn’t have been good at diving.

Modern aquatic animals tend to have dense bones that help they stay under the water.

These bones are said to act like a scuba diver’s weight belt.

Mystery surrounding giant ‘heron from hell’ dinosaur and how it devoured prey finally cracked in new study

Some dinosaurs, including the Spinosaurus, have air sacs inside their bones that help them avoid submerging.

For this reason, the team suspects the dinosaur stayed in shallow waters.

“We think Spinosaurus, one of the largest predatory animals ever to have evolved, needed extra bone strength to support its weight on its relatively short hind limbs,” senior author Paul Sereno explained.

“Spinosaurus was able to wade into waterways more than six feet deep without floating, where it could ambush fish of any size with its claws and jaws—but all while keeping its toes firmly anchored in the mud.”

A timeline of life on Earth

The history of the planet in years…

  • 4.6billion years ago – the origin of Earth
  • 3.8billion years ago – first life appears on Earth
  • 2.1billion years ago – lifeforms made up of multiple cells evolve
  • 1.5billion years ago – eukaryotes, which are cells that contain a nucleus inside of their membranes, emerge
  • 550million years ago – first arthropods evolve
  • 530million years ago – first fish appear
  • 470million years ago – first land plants appear
  • 380million years ago – forests emerge on Earth
  • 370million years ago – first amphibians emerge from the water onto land
  • 320million years ago – earliest reptiles evolve
  • 230million years ago – dinosaurs evolve
  • 200million years ago – mammals appear
  • 150million years ago – earliest birds evolve
  • 130million years ago – first flowering plants
  • 100million years ago – earliest bees
  • 55million years ago – hares and rabbits appear
  • 30million years ago – first cats evolve
  • 20million years ago – great apes evolve
  • 7million years ago –first human ancestors appear
  • 2million years ago – Homo erectus appears
  • 300,000 years ago – Homo sapiens evolves
  • 50,000 years ago – Eurasia and Oceania colonised
  • 40,000 years ago – Neandethal extinction

Reference

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