This finale of BBC’s "30 Animals That Made Us Smarter" explores how insects inspire future mobile phone technology. The host details biomimicry innovations, including cameras modeled on insect compound eyes for wider views, directional microphones based on spider hearing, and anti-reflective screens inspired by moth eyes. The episode concludes by highlighting cicada wing structures for creating sterile, waterproof surfaces, summarizing the season’s theme of nature-driven engineering.