As far as birds go, the hoatzin is really doing its own thing. It's a picky eater, an evolutionary mystery, and its babies have a super bizarre adaptation that might not be as uncommon as you'd think. Would you like this pin? You can get it in the Season 1 pin set available here: https://complexly.store/products/bizarre-beasts-season-one-pin-set Subscribe to the pin club here: https://complexly.store/products/bizarre-beasts-pin-subscription This month's pin is designed by Zoe Ryder. You can find out more about her and her work here: https://linktr.ee/zoepolandoryder You can cancel any time by emailing hello@dftba.com Host: Sarah Suta (she/her) Follow us on socials: Twitter: https://twitter.com/bizarrebeasts Instagram: https://www.instagram.com/bizarrebeastsshow/ Facebook: https://www.facebook.com/BizarreBeastsShow/ #Hoatzin #LivingDinosaur #BizarreBeasts #birds ----- Sources: https://animaldiversity.org/accounts/Opisthocomus_hoazin/ https://www.researchgate.net/profile/Alejandro_Grajal/publication/268688115_Structure_and_Function_of_the_Digestive_Tract_of_the_Hoatzin_Opisthocomus_hoazin_A_Folivorous_Bird_with_Foregut_Fermentation/links/5473b3190cf245eb436db85e/Structure-and-Function-of-the-Digestive-Tract-of-the-Hoatzin-Opisthocomus-hoazin-A-Folivorous-Bird-with-Foregut-Fermentation.pdf https://advances.sciencemag.org/content/5/5/eaat0787 https://www.audubon.org/news/which-birds-are-expert-climbers https://academic.oup.com/icb/article/40/4/461/101379 https://scienceblogs.com/tetrapodzoology/2010/06/30/clubs-spurs-spikes-and-claws https://www.jstor.org/stable/2485270?seq=1 https://www.researchgate.net/profile/Peter_Houde/publication/334115560_Resolving_the_Avian_Tree_of_Life_from_Top_to_Bottom_The_Promise_and_Potential_Boundaries_of_the_Phylogenomic_Era/links/5d30a09592851cf4408fd004/Resolving-the-Avian-Tree-of-Life-from-Top-to-Bottom-The-Promise-and-Potential-Boundaries-of-the-Phylogenomic-Era.pdf https://www.researchgate.net/profile/David_Marjanovic2/post/How_accurate_are_divergence_time_estimations/attachment/5b719d2d3843b0024405c776/AS:659181233258509@1534172461659/download/Prum-et-al-2015.pdf ------ Images: https://docs.google.com/document/d/1-yXNNLabKONYZdR4enDsPlnH9roRYNLK2KhxwbIV-I0/edit?tab=t.0