During the early stages of embryo development, dolphins have gill pouches. What does this mean? Dolphins evolved from fish. Fish evolved from dolphins. Dolphin embryos go through a fish phase during development. Dolphins and fish share a distant, common ancestor.

The right answer for the question that is being asked and shown above is that: "Dolphins and fish share a distant, common ancestor." During the early stages of embryo development, dolphins have gill pouches. This mean that dolphins and fish share a distant, common ancestor.