![]() “They made up a significant portion of the individuals in a species and would have had a very real impact on the resources available in communities.” “Dinosaur communities were like shopping malls on a Saturday afternoon - jam-packed with teenagers,” said Kat Schroeder, doctoral candidate at New Mexico and the study’s lead author. ![]() ![]() The findings suggest that juvenile Tyrannosaurs and young, developing offspring of other megatheropods outcompeted even the adults of intermediate-sized species for mutual prey as they moved up the food web, the researchers said. 26 in the journal Science, the study found that communities with massive dinosaur species - so-called megatheropods that weighed more than 2,200 pounds as adults - often lacked carnivorous species weighing between 2,200 and 220. The unrivaled growth spurts of gargantuan dinosaur species - some of which skyrocketed from less than 35 pounds to more than 15,000 - likely explain a scarcity of medium-sized species in prehistoric ecosystems, says a study from the University of New Mexico and University of Nebraska–Lincoln.
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