Although American scientists had been busy studying hormones in the 1930s and 1940s, Margaret sanger's dream of a pill for birth control improbably came to fruition because of the discovery of a wild ...

Yams are tuber vegetables (the type that grows mostly underground) native to Africa and Asia. There are over 600 species of yam, but only 15-20 are edible. Sweet potatoes are often mistaken for yams ...