The diversity of life on earth is astounding, with each species perfectly adapted to its environment. Sharks can navigate the ocean using electromagnetic fields; sloths use algae as camouflage; albatross can fly for hours without beating their wings; and orca pods each have unique cultures and languages. But every hour, three species disappear. Our incredible world is at risk. Megan McCubbin reveals the stories of the scientists, rangers and conservationists who are fighting to save these extraordinary creatures from extinction.