We can learn a lot about dinosaurs from the fossils they leave behind, but recently a tyrannosaur fossil discovered in 2009 has revealed something a bit unexpected. Paleontologists say they have now found the legs of other bird-like dinosaurs in the stomach of the fossilized creature and they say that has some interesting implications.
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00:00we can learn a lot about dinosaurs from the fossils they leave behind but recently a tyrannosaur
00:08fossil discovered in 2009 has revealed something a bit unexpected namely what it had for lunch
00:14paleontologists say they found the legs of other bird-like dinosaurs in the stomach of the fossilized
00:19creature and they say that has some interesting implications that's because this was an infant
00:23gorgosaurus labratus a type of tyrannosaur one which likely only weighed around 700 pounds they
00:29say this is the first evidence the creature's diets changed as they got older and inevitably bigger
00:34in fact 700 pounds is only around 10 of its final size one of the studies authors had this to say
00:40about the discovery they appear to have gone from hunting prey like cytopese a small fraction of
00:44their size as teenagers to hunting mega herbivore dinosaurs as large or larger than their size as
00:50adults this is likely due to how much the gorgosaurus changes over its lifetime growing from a small
00:55narrow-skulled creature to a much larger one with bigger teeth and more powerful jaw just one more
01:00tidbit of knowledge about a creature that hasn't lived in 75 million years