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We use money all the time, but have you ever wondered why U.S. banknotes are green? After A Moment of Science researchers did some investigating into the history of the Bureau of Engraving and Printing, it turns out that there are several reasons for the green-back design.

The bell pepper is one of the most popular vegetables in the world (even though it’s technically a fruit). Its deeply pigmented, shiny skin advertises its other qualities: flavor and texture, of course, but also nutritional content.

It might sound strange, but some orchids smell like people. Others smell like rotting meat or fish to attract pollinators.

We've been hearing a lot about the importance of gut bacteria to our health. Now it turns out that bacteria also have a say in how and when we eat.