2. Fighting Dinos
One of the rarest fossils ever found is the two fighting dinosaurs pictured above. A Protoceratops and a velociraptor were engaged in an intense life and death battle that would have most likely ended in the Protoceratops becoming lunch when they were entombed due to a sand dune collapse. The fossil was discovered in the Gobi desert by a Polish-Mongolian team in 1971.