A rat must never stop gnawing. This action grinds down their ever-growing incisors. If a rat was not provided with anything to gnaw, its lower teeth would eventually grow up through its skull and into its brain.
Edutainment
A rat must never stop gnawing. This action grinds down their ever-growing incisors. If a rat was not provided with anything to gnaw, its lower teeth would eventually grow up through its skull and into its brain.