Smell
Teeth
gnaw
chow
Gnawed - To bite or chew.
The root word of "chewable" is "chew," which means to crush or grind food with the teeth.
Smell
chew
I don't really understand what you mean by this, unless you mean 'What do otters do with THEIR teeth' in which case I believe they chew things with them.
mash, nash CHEW!
Because, without teeth, your mouth would have no other device to chew with.
crush food with your teeth? quite simple its chew
they use their teeth to grab their food and they don't chew their food
seahorses do not chew their food because they do not have teeth
humans chew up and down (with their teeth)
if they have teeth
You can give them different chew toys for them to chew on and it should keep the teeth at a decent length.