Question

why scoliodon known as dog fish???

Answer 1

hi,

Scoliodon , cartilagenous fish has mouth like dog which has following features :Body is covered by minute placoid scales or dermal denticles. 
Intestine has a spiral valve or scroll valve. Alimentary canal opens out by cloaca. 
Caudal fin is heterocercal i.e., it has two unequal lobes. The dorsal lobe is large and the ventral lobe is small. 
Due to protruded snout its face looks like that of dog.

hope it works!☺

Answer 2

Answer:

Scoliodon is a cartilagenous fish. It is also called as dogfish because it has highly developed sense of smell like dog. This power of smell enables it to find food. Thus, the correct answer is 'Power of smell.