Did you know that when you smell something, molecules of whatever you're smelling are actually entering your nose?! It's true! And it turns out, our senses work in all sorts of weird ways. Charlie and Kirby are determined to better understand how our senses of smell and taste work, with a little help from some experts.

Originally released by National Geographic, 2017. Streaming video file encoded with permission for digital streaming by Infobase on January 05, 2023.