51动漫
Explore the most exciting new ideas and emerging concepts in science, health, technology and the environment with 51动漫鈥檚 exclusive in-depth articles, interviews and long reads.
Life
Tiny T. rex fossils may be distinct species 鈥� but not everyone agrees
Palaeontologists can鈥檛 agree on whether fossils from several small dinosaurs represent juvenile Tyrannosaurus rex or smaller adults of a separate species that lived alongside them
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