Hummingbirds are the tiniest of birds, yet they are some of the toughest creatures on the planet. Using cameras able to capture over 500 images a second, the hummingbirds' magical world can finally be seen and appreciated. Nature reveals their stunning abilities as they have never been seen before. Narrated by F. Murray Abraham.

Most wildlife documentaries focus on animal behavior, but Inside Nature's Giants goes inside the largest animals on the planet to explore their anatomy, reveal their intricate inner workings and uncover their evolutionary secrets. In this episode, veterinary scientist Mark Evans and comparative anatomist Joy Reidenberg fly to New Zealand to join a team of experts dissecting a rare specimen of giant squid and a bizarre octopus that inhabits the ocean's...