Fresh fossil evidence is reshaping how scientists picture the adult T rex. While some of its smaller relatives likely had filament-like coverings, new skin impressions from the neck, pelvis, and tail point to scales. Researchers argue the dinosaur’s massive body may have reduced the need for heavy insulation, like elephants, revealing a more complicated evolution than popular imagination.
Movies give T rex a roaring soundtrack, but scientists argue that fossil clues don’t match loud calls. Instead, they suggest it likely produced low-frequency, resonant sounds—something closer to certain modern animal vocalizations. By comparing T rex-like traits to living birds and crocodiles, researchers narrow down how this giant may have sounded, even if the exact “voice” is still unknown.
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A new study in Science suggests T rex and other theropod dinosaurs likely had lips that covered their teeth when their mouths were closed. Researchers point to tooth wear patterns and skull proportions that fit with soft tissues, challenging the familiar image of permanently exposed fangs. The study even finds similarities to how modern reptiles like Komodo dragons keep teeth covered.
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