Convergent Evolution
This is a process where species that are technically not connected or closely related, yet independently evolve to have traits similar to each other. For example, you can see this with Eagles, Falcons, Bats, etc. All have wings that they evolved to possess. Scientists call this a type of analogous structure.
However, they do not owe their evolutionary change to each other. The wings evolved independently for survival or reproduction, meaning though similar they evolved differently. What we mean by this is, you did not need a long-term hereditary change among numerous species to reach this. It could begin with one and slowly allow more species or altered versions of the same to crop up.