While mapping the Galapagos Islands, Darwin made observations that would later give birth to his theory of evolution. ➡ Subscribe: https://on.natgeo.com/41A7tf0
About National Geographic Animals: National Geographic Animals brings you closer to the wild than ever before. Take a journey through the animal kingdom to discover fierce predators, surprising behaviors, adorable babies, and more through our fascinating wildlife documentaries, series, and specials.