Visit https://brilliant.org/scishow/ to get started learning STEM for free. The first 200 people will get 20% off their annual premium subscription and a 30 day free trial. Primates are super common in South America, living almost anywhere you can find trees. But as it turns out, we don't have a simple explanation for how their evolutionary ancestors got there... except, maybe rafts? Hosted by: Hank Green (he/him) ---------- Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow ---------- Huge thanks go to the following Patreon supporters for helping us keep SciShow free for everyone forever: Matt Curls, Alisa Sherbow, Dr. Melvin Sanicas, Harrison Mills, Adam Brainard, Chris Peters, charles george, Piya Shedden, Alex Hackman, Christopher R, Boucher, Jeffrey Mckishen, Ash, Silas Emrys, Eric Jensen, Kevin Bealer, Jason A Saslow, Tom Mosner, Tomás Lagos González, Jacob, Christoph Schwanke, Sam Lutfi, Bryan Cloer ---------- Looking for SciShow elsewhere on the internet? SciShow Tangents Podcast: https://scishow-tangents.simplecast.com/ TikTok: https://www.tiktok.com/@scishow Twitter: http://www.twitter.com/scishow Instagram: http://instagram.com/thescishowFacebook: http://www.facebook.com/scishow #SciShow #science #education #learning #complexly ---------- Sources: https://www.pnas.org/doi/full/10.1073/pnas.0710180105 https://onlinelibrary.wiley.com/doi/epdf/10.1002/ajpa.22769 https://www.science.org/doi/full/10.1126/science.aba1135 https://leakeyfoundation.org/ancient-teeth-from-peru-hint-now-extinct-monkeys-crossed-atlantic-from-africa/ https://www.nature.com/articles/nature17415 https://www.science.org/content/article/monkey-ancestors-rafted-across-sea-north-america https://www.frontiersin.org/articles/10.3389/fevo.2022.812804/full https://www.nature.com/scitable/knowledge/library/new-world-monkeys-148121150/ https://www.researchgate.net/figure/Paleogeographical-map-of-the-Late-Paleocene-Early-Eocene-Central-Arctic-Basin-showing-the_fig2_236221786 https://www.pnas.org/doi/full/10.1073/pnas.0511296103 https://www-sciencedirect-com.proxy3.library.mcgill.ca/science/article/pii/S0047248417303585#sec6 https://doi.org/10.1016/j.jhevol.2018.08.005 https://onlinelibrary.wiley.com/doi/epdf/10.1002/ajpa.22927 https://www.nature.com/articles/nature14120 https://doi.org/10.5061/dryad.0vt4b8gtt). https://www.science.org/doi/10.1126/science.aba113 https://www.nature.com/articles/nature14120#Sec1 https://www.researchgate.net/publication/340568913_A_parapithecid_stem_anthropoid_of_African_origin_in_the_Paleogene_of_South_America https://www.smithsonianmag.com/science-nature/monkeys-raft-across-atlantic-twice-180974637/ https://www.researchgate.net/publication/283868225_Floating_islands_A_mode_of_long-distance_dispersal_for_small_and_medium-sized_terrestrial_vertebrates https://www.researchgate.net/profile/Peter-Kappeler/publication/12174623_Lemur_Origins_Rafting_by_Groups_of_Hibernators/links/554baa810cf21ed2135a8620/Lemur-Origins-Rafting-by-Groups-of-Hibernators.pdf https://www.goodreads.com/quotes/1196-when-you-have-eliminated-all-which-is-impossible-then-whatever Images: https://www.gettyimages.com/detail/video/feeding-wild-capuchin-monkey-costa-rica-stock-footage/1255110734?phrase=howler%20monkey&adppopup=true https://www.gettyimages.com/detail/photo/capuchin-monkey-cebus-albifrons-sitting-on-a-large-royalty-free-image/1158316346?phrase=new%20world%20monkey%20south%20america&adppopup=true https://www.gettyimages.com/detail/photo/squirrel-monkey-royalty-free-image/1197005400?phrase=brazil%20monkey&adppopup=true https://www.gettyimages.com/detail/photo/an-angry-looking-white-fronted-capuchin-monkey-royalty-free-image/1273789654?phrase=brazil%20monkey&adppopup=true https://commons.wikimedia.org/wiki/File:TeilhardinaDB15.jpg https://www.eurekalert.org/multimedia/880455 https://www.eurekalert.org/multimedia/584918 https://www.gettyimages.com/detail/video/libya-map-highlighted-with-border-and-country-name-stock-footage/1399243952?phrase=libya%20map&adppopup=true https://phys.org/news/2020-04-ancient-teeth-peru-hint-now-extinct.html https://www.eurekalert.org/multimedia/876676 https://commons.wikimedia.org/wiki/File:Parapithecus_grangeri_mandible_2.jpg https://www.eurekalert.org/multimedia/887929 https://cp.copernicus.org/articles/17/269/2021/#&gid=1&pid=1 https://www.gettyimages.com/detail/photo/common-marmoset-royalty-free-image/1272838973?phrase=Callithrix%20jacchus&adppopup=true https://www.gettyimages.com/detail/video/river-view-mangrove-forest-trip-by-wooden-raft-stock-footage/1377623276?phrase=mangrove%20trees&adppopup=true https://www.pnas.org/doi/10.1073/pnas.2115346119 https://www.gettyimages.com/detail/video/wooly-monkey-stock-footage/866325900?phrase=peru%20monkey%20water&adppopup=true https://www.inaturalist.org/observations/1130796 https://www.inaturalist.org/observations/62236336 https://www.inaturalist.org/observations/40646734