Teenage T-Rexes edged out smaller dinosaur species, says study

Washington (AFP) – A team of US scientists has demonstrated that the offspring of huge carnivorous dinosaurs like Tyrannosaurus rex, who grew from the size of house cats to towering monsters, reshaped their ecosystems by outcompeting smaller rival species. Their study, published in the journal Science on Thursday, helps answer an enduring mystery about the 150-million-year rule of dinosaurs: why were there many more large species compared to small, which is the opposite of what we see in land animals today? “Dinosaur communities were like shopping malls on a Saturday afternoon, jam-packed with…

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