True Facts: Proboscis Monkey

Go to https://curiositystream.com/Zefrank - get Curiosity Stream for only $14.99 for a whole year. Code zefrank. Posters, shirts, and more: https://ze-true-store.myshopify.com/ Patreon: https://www.patreon.com/truefacts Research cited: Dixson A, F: Copulatory and Postcopulatory Sexual Selection in Primates. Folia Primatol 2018;89:258-286. doi: 10.1159/000488105 Lucia F. Jacobs, Basil el Jundi, Almut Kelber, Barbara Webb; The navigational nose: a new hypothesis for the function of the human external pyramid. J Exp Biol 6 February 2019; 222 (Suppl_1): jeb186924. doi: https://doi.org/10.1242/jeb.186924 Nishimura T, Mori F, Hanida S, Kumahata K, Ishikawa S, Samarat K, et al. (2016) Impaired Air Conditioning within the Nasal Cavity in Flat-Faced Homo. PLoS Comput Biol 12(3): e1004807. doi:10.1371/journal.pcbi.1004807 Ikegaya, H., Suzuki, M., Kondou, H. et al. Nose size indicates maximum penile length. Basic Clin. Androl. 31, 3 (2021). https://doi.org/10.1186/s12610-021-00121-z Hiroki Koda, Tadahiro Murai, Augustine Tuuga, Benoit Goossens, Senthilvel K.S.S. Nathan, Danica J. Stark, Diana A. R. Ramirez, John C. M. Sha, Ismon Osman, Rosa Sipangkui, Satoru Seino, Ikki Matsuda (2018) Nasalization by Nasalis larvatus: Larger noses audiovisually advertise conspecifics in proboscis monkeys. Science Advances 4(2): eaaq0250. doi:10.1126/sciadv.aaq0250 Additional footage licensed from Pond5.com Shutterstock.com Envato Elements Storyblocks Classical Music: 5 Audio Track https://soundcloud.com/querflote Sponsorship Music : Backbay Lounge Kevin McLeod