Question

Whales, sharks, and penguins, all in different classes of animals, have streamlined bodies with fins or flippers for efficient movement in water.

Convolution, Convergent Evolution, or Divergent Evolution?

Answer 1

Convergent evolution; even though these animals are all different classes, they have developed similar features due to the environments they live in. We call these analogous features and the means by which they develop convergent evolution.