7. The Venomous Snakes Who Store Poison In Their Fangs



Venomous snakes have hollow teeth, which allow for the storing and injection of venom into their prey. A poison gland feeds into the snake's fangs and provides venom at the point of attack, while smaller teeth on the snake's bottom jaw are only for latching onto the victim.
 
The fangs of a snake are either fixed or erectile, meaning that some snakes do not put their fangs out until they are ready to strike!

9. The Sheepshead Has Human-Like Teeth On The Roof Of Its Mouth



The Sheepshead is a common fish in North America and a target for many fishermen. What many people don't realize, however, is how strange their teeth are! These fish have human-like teeth, which is odd, but they also have a row of teeth on the roof of their mouths.
 
The teeth of this fish are relatively blunt, so they are used mainly for cracking open clams and oysters. These, along with crustaceans, are the main diet of the Sheepshead.