The homologous organs are similar in form (or are embryologically same), but perform different functions in different organisms. These provide strong evidence in the favour of evolution.  For example - The bone structure observed in wings of birds, wings of bats, flippers of dolphins, and arms of human beings resemble with each other. Though they look strikingly different on the outside and though they vary in function but they are very similar in skeletal structure. Thus in these animals, the same structure developed along different directions due to adaptations to different needs. This represents a case of divergent evolution.