Sharks don't have scales. They have skin.
Actually they have a kind of teeth on their skin called denticles.
The scales.
Shark teeth are infact made of scales, the same scales which covers it's body, but in case of its teeth it has been enlarged and strenghted.
A shark is classified as a fish. It breathes using gills, and has fine scales.
Shark skin looks and feels like it is covered with tiny teeth. In fact, their small, rough placoid scales (also called denticles), have the same structure as sharks' teeth! Shark skin is sometimes used as sandpaper.www.vanaqua.org/education/aquafacts/sharks.html
A shark's body is covered with skin and scales that are called denticles. Shark skin feels rough to the touch depending on which way it is rubbed.
scales
Scales
The outermost layer of most fish is scales.
They are actually covered in bony plates and NOT in scales.
spiky skin, hard scales shark
Shark skin is not soft and smooth as they it is covered in specialized scales. These scales are called placoid scales or dermal denticles.
no
The scales.
its simply because they lay eggs, they're cold-blooded and are coverd in scales
Shark teeth are infact made of scales, the same scales which covers it's body, but in case of its teeth it has been enlarged and strenghted.
Dermal denticles. Literally, "skin teeth." They are similar in structure to the teeth of a shark. See http://en.wikipedia.org/wiki/Dermal_denticle
Scales