Question

Do the dolphin and dog fish appear to be closely related?

Answer 1

.-. from what I can see, no :/. but then again I cant see the model for the dog if there isnt. But based of this, the Skeleton structure isnt within a same group class, but the Dolphin and Dog do share a similar inside, such as similar Lungs, Immune system, both require air to breath (despite the dolphins ability to live in water)