Allopatric Speciation 

1:36 - Definition of species 2:01 - Allopatric Speciation 3:00 - Four mechanisms of genetic divergence 3:14 - 1. Founders Effect 3:43 - 2. Genetic Drift 4:31 - 3. Mutation 5:02 - 4. Natural Selection 6:54 - Outcome of recombination #1 7:28 - Outcome of recombination #2 7:50 - Outcome of recombination #3 12:08 - Summary

This was such a clear and direct approach to allopatric speciation. Thank you

it was really helpful. a whole lot of thanks to the whole team

By far the best allopatric speciation video I've ever watched

Thanks a lot

You should have mentioned how the medium sized beak may be able to break the large seeds open and be efficient at eating the little seeds, which would make it selected for.