Gnawer is a term used to describe animals that have continuously growing front teeth and gnaw on hard objects to keep them trimmed. Some synonyms for gnawer include rodent, chewer, nibbler, and muncher. Rodent encompasses a vast group of gnawing animals such as rats, mice, squirrels, and beavers. The term chewer is often used to describe animals that actively chew on their food, like rabbits and hamsters. Nibbler refers to animals that take small bites at a time, like rabbits, while muncher is a more informal way to describe animals that eat constantly, like rodents. Regardless of the term used, gnawers play a vital role in the ecosystem, and their continued existence is essential to maintaining biodiversity.