Resumen de When Earth was planet of the giant tortoises
Tortoises evolved into giants on at least seven occasions and on four continents. The finding undermines the long-standing idea that tortoises become enormous only if they are stranded on remote islands. There are more than 40 species of tortoise, the most spectacular being the giant tortoises. On the Galapagos islands in the Pacific and Seychelles islands in the Indian Ocean, these animals can have shells more than 120 centimeters long. Evangelos Vlachos at the Museum of Paleontology Egidio Feruglio in Trelew Argentina, and Marton Rabi at the University of Halle-Wittenberg Germany, wanted to clarify the history of gigantism. They drew the tortoise family tree using data from extinct and living species.
