Let's learn more about Snake Biology.
Snakes have a forked tongue.
When they stick their wet tongue out, it gets covered with smelly stuff from the air and the ground.
They bring their tongue back in their mouth, and a part of their body called the Jacobson's organ, the vomeronasal organ or just VNO tells the snake what smells are on the tongue.
Because their tongue is forked, they can tell which smells were from the left, and which were from the right.
So in a way, they smell with their tongue, but their tongue really just gets covered in smells and brings those smells back to a sort of inside nose in their head.
(from: wikipedia - vomeronasal organ)
Kid Facts - Blast from the past: Newfoundland
