Google Play icon

New evidence that tyrannosaurs fought and ate each other

Posted April 10, 2015

The results show that the skull of a type of tyrannosaur called Daspletosaurus suffered numerous injuries during life, at least some of which were likely inflicted by another Daspletosaurus. It was also bitten after death in an apparent event of scavenging by another tyrannosaur. This provides evidence of combat between two large carnivores as well as one feeding on another after death.

Image: Luis Rey

Image: Luis Rey

Daspletosaurus was a large carnivore that lived in Canada and was only a little smaller than its more famous cousin Tyrannosaurus. Like other tyrannosaurs it was most likely both an active predator and scavenger. The individual in question, from Alberta Canada, was not fully grown and would have been just under 6 metres long and weighed around 500kg when it died.

Researchers found numerous injuries on the skull that occurred during life several of which are close in size and shape to the teeth of tyrannosaurs. Indications of healing on the bone’s surface mean that these injuries were not fatal and the animal lived for some time after they were inflicted.

Lead author Dr David Hone, a lecturer in ecology at QMUL, said: “This animal clearly had a tough life suffering numerous injuries across the head including some that must have been quite nasty. The most likely candidate to have done this is another member of the same species, suggesting some serious fights between these animals during their lives”.

There is no evidence that the animal died  was killed another tyrannosaur but it’s thought that after the specimen began to decay a large tyrannosaur bit into the animal and ate at least part of it.

Combat between large carnivorous dinosaurs is already known and there is evidence for cannibalism in various groups, including tyrannosaurs. This is however an apparently unique record with evidence of both pre- and post-mortem injuries to a single individual.

Source: QMUL

Featured news from related categories:

Technology Org App
Google Play icon
85,350 science & technology articles

Most Popular Articles

  1. New treatment may reverse celiac disease (October 22, 2019)
  2. "Helical Engine" Proposed by NASA Engineer could Reach 99% the Speed of Light. But could it, really? (October 17, 2019)
  3. New Class of Painkillers Offers all the Benefits of Opioids, Minus the Side Effects and Addictiveness (October 16, 2019)
  4. The World's Energy Storage Powerhouse (November 1, 2019)
  5. Plastic waste may be headed for the microwave (October 18, 2019)

Follow us

Facebook   Twitter   Pinterest   Tumblr   RSS   Newsletter via Email