>>19877989There were migrations in and out of Africa over several million years as the climate and geography changed. The point here is that the ability to migrate long distances would favor only those primates with the ability to swim and this is a highly specific morphology that does not describe the entire human genus. It is one thing to dog paddle through the water, but it is an entirely different way of life to be capable of swimming in such a way that frees the hands for tool use. Watch how a chimpanzee swims and look at his morphology. We are clearly not the same
