13)Gene Pool

Of the combined genetic material you receive from your parents, about half of that determines the complex design of your brain. The other 98% of your body and its organization is determined by the other half of your genes.
Among the sands of the Northern Cape, where the San people have walked for over 20,000 years, a voice still carries one of humanity’s oldest languages — N|uu. Once spoken widely, today it trembles on the edge of silence, with only a handful of fluent speakers left. Yet, at 90 years old, Katrina Esau, affectionately known as Ouma Katrina, has refused to let this treasure vanish into history. From her modest home, she opens her doors to children, teaching them ...