I think the first podcast I ever listened to- back when podcasts were not as popular/accessible as they are today- was a radiolab piece on colors, the perception of colors, and mantis shrimp. Mantis shrimp came up because they have 16 visual cones/receptors in their eyes compared to a human’s meager 5. (However, in a follow-up segment it's posited that their brains are so small that they cannot fully appreciate this color-recepting superpower.) The episode was so informative and entertaining to me that I think it’s the only podcast episode I’ve ever listened to more than once. (Except for another radiolab episode about face blindness.)
Definitely worth a listen if you are curious. There's...