What is an example of speciation, geographic isolation and convergent evolution?

speciation - darwin's observation of the finches on the galopogos islands (please tell me i spelled that correctly)


geographic isolation - the polar bear and brown bear isolation due to the oceanic and glacier barriers


convergent evolution - the butterfly and the bird both have wings and use them for the same purpose, but they are not the same speciesWhat is an example of speciation, geographic isolation and convergent evolution?
speciation --%26gt; the finches on the galapagos islands


geographic isolation --%26gt; the finches on the galapagos islands


convergent --%26gt; two animals having an anagolous structure, like wings but from two different areas.