Why Do River Dolphins Look… Like That?

Check out Manta Sleep here https://tinyurl.com/54xsxtt4 and make sure to use bizarrebeasts for 10% off your order! And then, take a nap! Why are there dolphins in rivers, and why do they look... like that? There are a handful of very similar-looking, but somehow unrelated river dolphins around the world. Where did they all come from, and what is it about living in rivers that causes dolphins to look so specific? Get your own river dolphin pin here: https://complexly.store/products/bb-april-25-river-dolphins Subscribe to the pin club here: https://complexly.store/products/bizarre-beasts-pin-subscription This month's pin is designed by Rachel Calderon Navarro. You can find out more about her and her work here: https://rachelcalderonnavarro.com/ You can cancel any time by emailing [email protected] Follow us on socials: Instagram: https://www.instagram.com/bizarrebeastsshow/ Facebook: https://www.facebook.com/BizarreBeastsShow/ Bluesky: https://bsky.app/profile/bizarrebeastsshow.bsky.social #BizarreBeasts #dolphin ----- Sources: https://www.riverdolphins.org/river-dolphins-worldwide/amazon-river-dolphin https://www.riverdolphins.org/river-dolphins-worldwide/tucuxi/ https://www.fisheries.noaa.gov/species/indus-river-dolphin https://www.riverdolphins.org/river-dolphins-worldwide/ganges-river-dolphin/ https://us.whales.org/whales-dolphins/species-guide/baiji/ https://pmc.ncbi.nlm.nih.gov/articles/PMC17202/ https://www.sciencedirect.com/science/article/pii/B978012804327100220X https://animalia.bio/bolivian-river-dolphin https://animaldiversity.org/accounts/Inia_geoffrensis/ https://marinemammalscience.org/science-and-publications/list-marine-mammal-species-subspecies/ https://www.scribd.com/document/751826619/i2 https://pmc.ncbi.nlm.nih.gov/articles/PMC2391192/ https://www.sciencedirect.com/science/article/pii/B9780123735539000614 https://onlinelibrary.wiley.com/doi/10.1111/j.1748-7692.2006.00003.x https://pmc.ncbi.nlm.nih.gov/articles/PMC5701545/ https://pmc.ncbi.nlm.nih.gov/articles/PMC7511723/ https://onlinelibrary.wiley.com/doi/10.1111/j.1748-7692.2011.00526.x https://doi.org/10.1242/jeb.120501 https://books.google.com/books?hl=en&lr=&id=2rkHQpToi9sC&oi=fnd&pg=PP1&dq#v=onepage&q&f=false https://royalsocietypublishing.org/doi/10.1098/rspb.2000.1385 https://www.sciencedirect.com/topics/earth-and-planetary-sciences/miocene https://royalsocietypublishing.org/doi/10.1098/rspb.2019.1771 https://www.nationalgeographic.com/science/article/fossil-river-dolphin-lived-out-at-sea https://animaldiversity.org/accounts/Pontoporia_blainvillei/ https://us.whales.org/whales-dolphins/species-guide/franciscana/ https://www.dolphins-world.com/tucuxi-sotalia-fluviatilis/ https://animaldiversity.org/accounts/Sotalia_fluviatilis/ https://link.springer.com/article/10.1007/s00227-005-0078-2 https://www.nature.com/articles/s41467-018-03722-x https://animalia.bio/yangtze-finless-porpoise?environment=1507 https://www.riverdolphins.org/best-practices/addressing-threats/threat-overview-and-ranking/ https://royalsocietypublishing.org/doi/full/10.1098/rspb.2016.2348 ------ Images: https://docs.google.com/document/d/14YdFeGf3h5RSWNZ6S_30Og2RUwVuHZJyNnkdl04ZlQ8/edit?usp=sharing