Philip L. Wright Zoological Museum

Oryctolagus cuniculus 

This unfortunate domestic rabbit suffered from malocclusion, or a misalignment of the teeth.  Most domestic rodent and lagomorph owners are aware of the potential problems involved with continuously growing incisors and should bring their pets in to get their teeth ‘filed down’ to prevent this sort of problem, which can eventually lead to starvation.  Malocclusion to this severity is very rare in wild rodents and hares because they generally do not live long enough for the problem to occur as it does in domestic animals, who generally have longer lifespans than their wild cousins.