Mini T. rex was a surprisingly smart customer

• Autores: Jeff Hecht
• Localización: New scientist, ISSN 0262-4079, Nº. 3065, 2016, pág. 12
• Idioma: inglés
• Texto completo no disponible (Saber más ...)
• Resumen

  • Brains came before brawn for the iconic Tyrannosaurus rex. The star of Jurassic Park emerged as a huge and cunning predator some 80 million years ago. But how it evolved has long been a mystery, because of a gap in the fossil record that began 100 million years ago. Now, a skull fragment and other remains show that this dinosaur started out merely the size of a bear, and that it evolved its big brain before its giant 5-tonne stature. The fossils, found in Uzbekistan, date back 90 million years and help explain how T. rex was able to become so big and so dominant, says Stephen Brusatte of the University of Edinburgh UK.