to protect there home and them self
Sharp teeth.
the rare slug fish.
As sharp as a brand new knife...
Bottlenose Dolphins eat a lot of fish. And need Sharp teeth to Catch them with.
Every fish is carnivorous mentallity Janine
Piranhas, Gars, Viper fish, and Angler fish all have very sharp, needle-like teeth.
whale
Yes
Apart from sub-species specializing in eating fish - like the Gavial - croc and alligator teeth aren't very sharp. They rely more on bite force to get penetration and grip, then the death roll to tear their prey apart into chunks that can be swallowed.
Killer whales have sharp teeth's seals,and they have canine teeth. Polar bears have sharp teeth's fish,and the also have canine teeth
Puffer fish do not have small mouths. In fact they have a decently large mouth, they need this to fit their large teeth, which they chew on live rock to keep filed down.
sharp teeth