Aztec men sharing a meal What did early people eat? When people first came to Central and South America, perhaps about 15,000 BC, they hunted and gathered all of their food. They picked wild potatoes, [...]
Sapodilla tree - where chewing gum comes from Who invented chewing gum? Nobody knows when the first person began to chew gobs of sap from trees, but it was probably [...]
Oil and water You can easily see for yourself how the amino acids formed into little spheres or bubbles. They were trying to get as far away from the water as [...]
