Dolphins and fish have similar body shapes. is this feature more likely a homologous or analogous trait?

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Biology

Jaime Dunlap

15 August, 22:26

Dolphins and fish have similar body shapes. is this feature more likely a homologous or analogous trait?

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Hallie Cantu · Answer 1

This trait is mostly an analogous one. The evolutionary paths of fishes and dolphins are quiet separate as one is a strictly aquatic being and the other is a mammal. As for the shape thing, it is mostly due to the aquatic lifestyle similar to the fish that dolphins adapted over the time.