Evolution: It's a Thing - Crash Course Biology #20

Hank gets real with us in a discussion of evolution - it's a thing, not a debate. Gene distribution changes over time, across successive generations, to give rise to diversity at every level of biological organization. Table of Contents 1) The Theory of Evolution 1:49 2) Fossils 2:42 3) Homologous Structures 4:36 4) Biogeography 7:02 5) Direct Observation 8:52 References: http://www.hisl.ent.msu.edu/discussio... http://www-personal.umich.edu/~ginger... http://evolution.berkeley.edu/evolibr... http://www.thomsonedu.com/community/r... http://articles.latimes.com/2010/jul/... http://www.ncbi.nlm.nih.gov/pmc/artic... http://news.nationalgeographic.com/ne... Crash Course is on Patreon! You can support us directly by signing up at   / crashcourse   Want to find Crash Course elsewhere on the internet? Facebook -   / youtubecrashcourse   Twitter -   / thecrashcourse   Instagram -   / thecrashcourse   CC Kids:    / crashcoursekids