Why do some people eat super gross foods?

How did early humans know which foods to eat, and which to avoid? What are some of the craziest food discoveries? Are some foods safe to eat, but also... deadly? For free home activities sign-up at www.WhoSmarted.com See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.