Answer. Scoliodon is called dogfish due to its ‘Power of Smell’.
Complete Answer:
Scoliodon is called a dogfish because it has an amazing sense of smell, just like dogs. That is why the correct answer is D, Power of smell.
Scolidon is a type of small shark that lives in the sea. It has special smell organs called olfactory sacs, which help it detect even tiny amounts of chemicals in the water, like a drop of blood from very far away. This powerful sense of smell helps it hunt and survive in the ocean. Just like a dog can sniff and track things on land, the dogfish can sniff in water and find food.
Let us look at why the other options are not correct:
A. Mouth
Scoliodon has a mouth that is placed on the underside of its head. But many sea creatures have mouths like that. It doesn’t have anything to do with a dog, so this can’t be the reason it’s called dogfish.
B. Gait
Gait means how an animal moves. Scoliodon swims in water using its tail and fins. It doesn’t walk or move like a dog, so this option doesn’t fit the name “dogfish” either.
C. Carnivorous
Scoliodon does eat meat like fish, crabs, and small sea animals. But many other sea creatures are also carnivorous. This doesn’t explain why it is compared to a dog.
So, the main reason it is called a dogfish is because of its strong sense of smell, and that is what makes it similar to dogs.

Fun Fact
Did you know? Scoliodon has such a sharp nose that it can smell a single drop of blood from hundreds of meters away. This superpower makes it a top hunter in the ocean.
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