It's like weird Toothy truths
7. Teeth that never let go - Lamprey
Lampreys have a head full of teeth. Although biologists point out that the lamprey's teeth made of the keratin you find in fingernails and animal claws. The lamprey will use the outer sets to clamp onto prey and then use teeth on its tongue to rasp away the skin until blood starts to flow. After that, it's easy living for the lamprey so long as it stays attached.