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THE REMAINS OF two baby dinosaurs have been discovered inside the fossil of a 75-million-year-old tyrannosaur, shedding new light on the changing diet of the ancient predators.
According to a study published in the journal Science Advances, the hind limbs of two small bird-like dinosaurs called citipes were found beneath the rib cage of a juvenile gorgosaurus, a close cousin of the Tyrannosaurus rex.
The researchers behind the study say the discovery suggests juvenile gorgosaurus’ preyed on small, young dinosaurs, while earlier fossil evidence shows the adult gorgosaurus attacked and ate very large plant-eating dinosaurs which lived in herds.
Dr Darla Zelenitsky, one of the lead scientists in the study, told the BBC the discovery is “solid evidence that tyrannosaurs drastically changed their diet as they grew up”.
She said: “We now know that these teenage (tyrannosaurs) hunted small, young dinosaurs.
“These smaller, immature tyrannosaurs were probably not ready to jump into a group of horned dinosaurs, where the adults weighed thousands of kilograms.”
The fossil was originally discovered in Canada’s Alberta Badlands in 2009, but was entombed in rock and took years to be prepared for study.
The initial discovery was made by staff at Alberta’s Royal Tyrell Museum of Palaeontology, who spotted small toe bones protruding from the rib cage.
Dr Francois Therrien, the other lead scientist in the study, told the BBC: “The rock within the ribcage was removed to expose what was hidden inside.
“And lo and behold – the complete hind legs of two baby dinosaurs, both under a year old.”
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The researchers behind the study have named the baby dinosaurs “Micheál and Leo”.
@Dissasociated Follower: no they haven’t.
@Dissasociated Follower: They probably did eat snakes as well in fairness.
@David Corrigan: Sinn Fein going to be extinct like snakes
He did well to get a shed built back then.
Joe Biden sponsors mass murder!!!
@David: China did the same for a resolution on Ukraine
@David: and their partners in crime The UK abstained
keep pandering the the israel lobby!!!
RIP Ryan O’Neal.
Barry Lyndon is one of the greatest films ever made.
@honey badger: no it wasn’t, it was too long and a bit boring.
@donal O’brien: I’ve reported your comment Donal. Outrageous nonsense.
@Peter Murray: no they won’t : )
@CP: And they weren’t.
@Peter Murray: The Yellow stalker has spoken…again.
Where’s Felix and your other cohort of alter ego’s!
Those Tyrannosaurs are full of unvetted dinosaurs of fighting age.
Their bellies are full, close the late Cretaceous period.
@David: USA’s veto is disgusting and peoples apathy to what’s happening is also disgusting. The US veto is a vote in favour of continuing to kill thousands of children for God sake. Why aren’t more people outraged by this?
They will say the same about our diet in a million years they used to eat other animals and then went vegan
@ the Journal…you are a total disgrace!
I didnt know fossils has shed. Fascinating. Punctuation is important.
@Dissasociated Follower: I think most people are outraged (with the exception of the xenophobes and the anti Islamic haters).
I read posts here during the week of people turning their back on what is happening in favour of multinational capitalists.
Karl Marx was spot on, the quest for the mighty $,£,E, will enslave the world and force people into abandoning all their once held principles, simply because they have become trapped by the monetary system.
@Bass Boss: what’s this boss?
@CP: Angela Bower
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