For example - today's humans are genetically identical to humans 300 years ago. But today humans can fly. Humans can communicate across the world. We can see 13 billion years almost back to the beginning of time itself. We can take the heart out of one person and put it into another. Yet we are genetically identical. | For example - today's humans are genetically identical to humans 300 years ago. But today humans can fly. Humans can communicate across the world. We can see 13 billion years almost back to the beginning of time itself. We can take the heart out of one person and put it into another. Yet we are genetically identical. |