* Large, continuously growing incisors: Beavers have two large, chisel-shaped incisors in the front of their mouth that never stop growing. These teeth are covered in hard enamel on the front and softer dentin on the back, creating a self-sharpening mechanism.
* Two pairs of lower incisors: Rodents have two pairs of lower incisors, while other mammals have only one.
* Diastema: They have a gap between their incisors and other teeth, called a diastema. This gap allows space for their large incisors to move freely.
* Small, weak canine teeth: Rodents have either no canine teeth or small, non-functional ones.
* Herbivorous diet: All rodents are herbivores, meaning they eat plants. Beavers are known for their love of bark, twigs, and leaves.
* Powerful chewing muscles: Beavers have powerful jaw muscles that help them gnaw on wood and other tough vegetation.
These features are common to all rodents, including beavers.