forked tongue
Most reptiles have good eyesight and a keen sense of smell. Snakes smell scents in the air using their forked tongue see Figure below . This helps them locate prey. Some snakes have heat-sensing organs on their head that help them find endothermic prey, such as small mammals and birds. Staring into the Beautiful Cold-Blooded Eyes of Reptiles at http://www. environmentalgraffiti. com/news-reptile-eyes is a pictorial display of numerous reptile eyes.