Bite marks

mouse other teeth sq

Close-up of a mouse's front incisor teeth - a top pair and a bottom pair.

The incisors can leave tiny parallel marks, approximately 0.5mm wide, on fruit and seeds and on wax tags and chewcards used for monitoring pest animal populations.

Photograph: By Magne Flåten, Norway (Own work) [GFDL ( or CC BY-SA 4.0-3.0-2.5-2.0-1.0 (], via Wikimedia Commons)