Are humans the only species that practice dental hygiene to retain their pearly nashers? Plus we ask, could we cope if computers conked?
We had a dog with bad teeth at one stage. The vet told us to feed her raw chicken bones as the act of chewing and crunching the hard(ish) bones, helped keep the teeth clean.
Perhaps the human love of high-sugar, highly processed, cooked and softened foods means that oral bacteria can make a good living in our mouths?
I remember seeing a documentary once about tiny fish that would clean the particles of flesh left on the teeth of a predator after feeding. For the life of me, I can't remember the identity of the predator, whether an alligator or shark, I can't remember. Maybe it was a Moray Eel, I just can't remember but I'm sure I saw this on National Geographic Channel. I thought it quite interesting that the predator would allow such a cleaning without disposing of these tiny fish in the process. Nature is a marvelous thing isn't it! Ethos_, Sun, 17th Mar 2013
Chimps do JimBob, Sun, 28th Apr 2013
And crocodiles let birds pick stuff from their teeth. AndroidNeox, Sun, 12th May 2013