The iconic dinosaur exhibit at the Carnegie Museum of Natural History will undergo renovations over the next several years.

The tissues of the MH7 fossil were so precisely preserved that researchers could study individual skin cells. In some samples, they could even visualize skin cell nuclei under the microscope.

Two hundred million years ago, icy Antarctica was a lush, temperate region, home to crocodile-sized amphibians and rhinoceros-sized dinosaurs.