🦷 Open wide! A naked mole-rat can move each of its large incisor teeth separately—like a pair of chopsticks. Nearly one-quarter of their muscle mass is contained in their jaws. Most of the time, they use their teeth to dig their underground tunnels (their hairy mouths prevent them from swallowing dirt). But, they can also use them to fight and injure their opponents—sometimes with fatal consequences. ✏️LEARN MORE: https://s.si.edu/4aGE2L1. | Smithsonian’s National Zoo and Conservation Biology I