In this 6-part series, David Attenborough reveals the most intriguing animals he's met during his incomparable career. Each episode features two species connected by a distinctive evolutionary quirk. Our planet is populated with amazing animals that have extraordinary life histories.

Some have been perpetually surrounded by myth and misunderstanding, and some have only recently revealed their secrets. Using the latest findings from cutting-edge science, this fascinating series reveals the remarkable evolutionary traits behind these wonders of the natural world. Still as inquisitive and passionate as ever, David brings these singular stories to life with great knowledge and verve.