The fossil leg bone of an extinct terror bird that was found in Colombia's Tatacoa Desert is shown. While some terror bird fossils have been found in Florida and Texas, the specimen from La Venta is believed to be the northernmost terror bird from South America documented by scientists. Placing terror birds in La Venta “is one step closer to understanding how terror birds finally got to North America,” Degrange said. A map shows the countries in North America and South America (in gray) where terror bird fossils have been found. “We know that probably one of the drivers that led terror birds to get larger and larger was the competition between species of terror birds — but why that big?” he said.

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Persons: ”, Federico Javier Degrange, Degrange, phorusrhacids, “, ” Degrange, Karen Moreno, Moreno, ” Moreno, —, Mindy Weisberger Organizations: CNN, National University of Córdoba, Museo, Apex, National Monuments Council, Austral University of Chile’s Institute of Earth Sciences, Scientific Locations: Colombia, La, Palaeontology, Argentina, South America, what’s, Brazil, Venta, Florida, Texas, La Venta, North America, Chile