Chapter 4 Jaquan Ellis

             In a small town known as Gubbio, a geologist by the name of Walter Alvarez discovered traces of a huge asteroid which was claimed to be the one that struck the dinosaurs during the Cretaceous period. The traces were a thick layer of clay that contained iridium and marine fossils beneath the surface of the Earth. There began the Alvarez theory of where the Earth was struck by a iridium covered asteroid, killing off the dinosaurs. Kolbert meets up with a man known as Landman and is told that a species called ammonites have survived with few numbers and evolved after the asteroid struck and has began to adapt into many areas to live in. Are there other species that survived  the asteroid struck? It’s a little peculiar for species that are weaker than dinosaurs surviving a asteroid impact.