SciShow
Why Our Brains Love Junk Food
Hank explains the scientific reasons behind why we humans generally prefer to eat donut hamburgers to carrots.
Curated Video
Homo Habilis and Boisei
2 million years ago, two species of apeman had evolved different strategies to survive the African environment. When the landscape changed, which would continue on the path to becoming human, and why? Biology - Adaptation And Evolution -...