Built-In Periscope
The Tanystropheus was a reptile from the Triassic period, 242,000,000 years ago. It looked sort of like a crocodile, with a very-very-very long neck. How did a creature with a 4-foot-long body, support a 7-foot-long neck? Paleontologists now believe its body rested on the ground underwater, while its head floated on the surface, trapping food.