Hank guides us through the process of natural selection, the key mechanism of evolution. Crash Course Biology is now available on DVD!
Best Quality: 720p HD Warnings: SPOILERS, VIOLENCE, DISTURBING IMAGES. Original from my old account "NinoSingh". The Evolution of Jesse Pinkman ...
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Imagine cameras have been around since the creation of Earth to record every major event. Take a photographic journey thorough time from the violent birth of ...
The future of human beings Homo sapiens, the name for you, myself and ever human being that exists on our planet, we evolved from Africa about 200000 years ...