Organisms that swim through water may have similar traits. For example, both dolphins and sharks have a dorsal fin, which helps the animal to stay upright and not roll over while swimming. Externally, the fins are similar. Internally, they are quite different. The latter observation suggests that is a case of what type of evolution?1. Convergent2. Divergent3. Adaptive radiation4. Allopatric
Convergent evolution is when different organisms evolve over a similar trait. Dolphins and Sharks both evolved over a similar trait but do not have a common ancestor, this is evidence of a convergent evolution.
