Dr. Jordan Mallon, Canadian Museum of Nature (IMAGE)

Canadian Museum of Nature

Dr. Jordan Mallon, Canadian Museum of Nature

Caption

Dr. Jordan Mallon stands in the Canadian Museum of Nature's collections among replicas of skulls of dinosaurs previously studied for sexual dimorphism: Tyrannosaurus rex (large skull), Allosaurus fragilis (black skull), Protoceratops andrewsi and Stegoceras validum (in his hand).

Credit

Dan Smythe © Canadian Museum of Nature

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