dog mouths. maybe some others too.
by sasa_cam247
by DiamondBonz
by Steve

by Steve

by Brett and Sue Coulstock
by Shawn Parker
by gbinbc777
amyogers:

Favorite pastimes: gnawing on tree bark

amyogers:

Favorite pastimes: gnawing on tree bark

pupfreckles:

http://www.vivo.colostate.edu/hbooks/pathphys/digestion/pregastric/dentalanat.html
verticalvest:

!!!!!!!!

verticalvest:

!!!!!!!!