Question

The fish Wallago is commonly known as freshwater shark because it is

• A. An elasmobranch.
• B. Dangerously predatory.
• C. Marine.
• D. Resembles shark in body form.

Answer 1

The correct option is B Dangerously predatory.

Wallago is a genus of catfishes of the family Siluridae and is found in the rivers throughout southern Asia. The Wallago species are large, predatory catfishes and hence are called as freshwater sharks. They have five rays in their dorsal fin.

So, the correct answer is option B.