We have a short and sweet summer episode for you! Charles Darwin is known as the father of evolution, but he got his start as a naturalist as a young man. He took an ambitious five year journey around the year, studying thousands of species of plants and animals. Many years after his return to England, he wrote The Origin of Species, one of the most famous and influential scientific books ever written.  Áki Jarl Láruson tells the story, at a meeting of evolutionary biologists in Austin, Texas.   Learn more at tumblepodcast.com   Have you answered our listener survey? Help shape the future of Tumble at bit.ly/tumblesurvey    Subscribe on iTunes or your favorite podcatcher! Like us on Facebook, and follow us on Twitter!