Question

function of the dorsal fins
​

Answer 1

Answer:

The main purpose of the dorsal fin is to stabilize the animal against rolling and to assist in sudden turns. Some species have further adapted their dorsal fins to other uses. The sunfish uses the dorsal fin (and the anal fin) for propulsion.

Explanation:

The dorsal fin and flukes are composed of connective tissue, not bone. Other connective tissue, such as external ears, has been lost, and the male genitalia have moved internally.