Learn about non-human animals that say hello and goodbye; life on Snowball Earth; and how to learn skills twice as fast. Apes use their own form of hello and goodbye, the first time we've seen that in non-human animals by Steffie Drucker  Heesen, R., Bangerter, A., Zuberbühler, K., Iglesias, K., Neumann, C., Pajot, A., Perrenoud, L., Guéry, J.-P., Rossano, F., & Genty, E. (2021). Assessing joint commitment as a process in great apes. IScience, 102872. https://doi.org/10.1016/j.isci.2021.102872  Like humans, apes communicate to start and end social interactions. (2021, August 11). EurekAlert! https://www.eurekalert.org/news-releases/924594  ‌Schultz, I. (2021, August 11). Bonobos Appear to Say “Hello” and “Goodbye” to Each Other. Gizmodo; Gizmodo. https://gizmodo.com/bonobos-appear-to-say-hello-and-goodbye-to-each-other-1847464864  Conor Feehly. (2021). Apes Have Been Observed Starting And Ending Interactions Just Like Humans Do. ScienceAlert. https://www.sciencealert.com/apes-observed-using-purposeful-signals-to-start-and-end-interactions  Life survived on "Snowball Earth" despite the ice; a new study says Earth's orbit explains why by Briana Brownell Changes in Earth’s orbit enabled the emergence of complex life. (2021). EurekAlert! https://www.eurekalert.org/pub_releases/2021-07/uos-cie070721.php  ‌Mitchell, R. N., Gernon, T. M., Cox, G. M., Nordsvan, A. R., Kirscher, U., Xuan, C., Liu, Y., Liu, X., & He, X. (2021). Orbital forcing of ice sheets during snowball Earth. Nature Communications, 12(1). https://doi.org/10.1038/s41467-021-24439-4  Buis, NASA’s, A. (2021, February 24). Milankovitch (Orbital) Cycles and Their Role in Earth’s Climate. Climate Change: Vital Signs of the Planet. https://climate.nasa.gov/news/2948/milankovitch-orbital-cycles-and-their-role-in-earths-climate/  Scientists Found a Technique That Can Help You Learn Skills Twice as Fast by Joanie Faletto first aired April 26, 2018 https://omny.fm/shows/curiosity-daily/freezer-burn-science-a-giant-flying-reptile-and-ho  Follow Curiosity Daily on your favorite podcast app to learn something new every day withCody Gough andAshley Hamer. Still curious? Get exclusive science shows, nature documentaries, and more real-life entertainment on discovery+! Go to https://discoveryplus.com/curiosity to start your 7-day free trial. discovery+ is currently only available for US subscribers. See omnystudio.com/listener for privacy information.