I know that sewage kind of gets a bad rap, but it's actually kind of awesome, because it can tell us an incredible amount about the health of our communities.
When acacia trees are grazed by animals, they quickly react by producing chemicals called tannins, which make their leaves unappetizing and tough to digest.
One promising field of research is the production of proteins from petroleum by microbiological conversion, which sounds most unappetizing, but we do use microbes to make wine.