The woodpecker’s tongue can extend 2/3 its body length. Its tongue is covered in sticky saliva and barbs all over with an ear (a hearing mechanism) at the end of it. So it can listen to its prey. It detects sound. The tongue is so long that it fits its tongue in its head by wrapping around its brain and around its eye sockets. It can move its head/beak up to 15-16 times per second as it strikes a tree. This is incredibly fast. It creates immense forces, 250 more times than astronauts are subjected to. It is 1,000 G’s. The woodpecker has cartilage around the brain that keeps it from shattering.