Tubarão pré-histórico

Science and Technology

Up to 5 Meters Long, Venomous Spine and Fully Aquatic Life: The Xenacanthus Was the Freshwater Prehistoric Shark That Dominated Rivers and Lakes

Débora Araújo 08/01/2026 at 14:09

Science and Technology

Cave in the U.S. Reveals New Species of Prehistoric Shark Dating Back 340 Million Years

Romário Pereira de Carvalho 26/07/2025 at 19:33