We Solved the Mystery of the Dying Birds

SciShow is supported by Brilliant.org. Go to https://Brilliant.org/SciShow to get 20% off of an annual Premium subscription. Across the southeastern United States, bald eagles have been dying unexplainedly for the past 25 years. In March of 2021, researchers announced that they had found the killer, and they hope we can use this knowledge to better protect eagles and the ecosystems they depend on.Hosted by: Hank GreenSciShow has a spinoff podcast! It's called SciShow Tangents. Check it out at http://www.scishowtangents.org----------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:Alisa Sherbow, Silas Emrys, Drew Hart. Jeffrey Mckishen, James Knight, Christoph Schwanke, Jacob, Matt Curls, Christopher R Boucher, Eric Jensen, Adam Brainard, Nazara, GrowingViolet, Ash, Sam Lutfi, Piya Shedden, KatieMarie Magnone, charles george, Alex Hackman, Chris Peters, Kevin Bealer, Jason A Saslow----------Looking for SciShow elsewhere on the internet?Facebook: http://www.facebook.com/scishowTwitter: http://www.twitter.com/scishowTumblr: http://scishow.tumblr.comInstagram: http://instagram.com/thescishow----------Sources:https://journals.sagepub.com/doi/10.1177/030098589803500602 (1998)https://meridian.allenpress.com/jwd/article/38/4/678/122768/EPIZOOTIOLOGIC-STUDIES-OF-AVIAN-VACUOLAR (2002)https://onlinelibrary.wiley.com/doi/abs/10.1002/tox.20111 (2005)https://www.biotaxa.org/Phytotaxa/article/view/phytotaxa.181.5.1 (2014)https://www.eurekalert.org/pub_releases/2021-03/mh-wik031921.php https://science.sciencemag.org/content/371/6536/eaax9050 (2021)https://pubs.acs.org/doi/10.1021/ac990998k (fancy mass spec)Images:https://www.istockphoto.com/photo/bald-eagle-gm512328486-87107199https://www.istockphoto.com/vector/ddt-bottle-insect-spray-vector-illustration-gm1164380993-320046136https://www.eurekalert.org/multimedia/pub/259690.phphttps://commons.wikimedia.org/wiki/File:DeGray_Lake,_Arkansas.jpghttps://www.istockphoto.com/photo/coot-on-ice-gm543587284-97577897https://www.istockphoto.com/vector/illustration-of-neuron-anatomy-vector-infographic-gm1153647071-313399023https://commons.wikimedia.org/wiki/File:Brometalin_Formula_V.2.svghttps://commons.wikimedia.org/wiki/File:Hydrilla_USGS.jpghttps://www.istockphoto.com/photo/green-water-polluted-with-blue-green-algae-cyanobacteria-gm1291085838-386300190https://www.istockphoto.com/photo/cyanobacteria-micrograph-gm117322322-7432974https://www.eurekalert.org/multimedia/pub/246767.phphttps://commons.wikimedia.org/wiki/File:Brometalin_Formula_V.2.svghttps://commons.wikimedia.org/wiki/File:USACE_DeGray_Dam_and_Lake.jpghttps://commons.wikimedia.org/wiki/File:Hydrilla_verticillata_is_it-_in_Hyderabad_W_IMG_8305.jpghttps://www.istockphoto.com/photo/hydro-biologist-gm538412569-58650504https://www.istockphoto.com/photo/bald-eagle-in-flight-gm1093253752-293385563https://www.istockphoto.com/photo/mitochondria-gm843281710-138573085https://www.storyblocks.com/video/stock/spinning-bright-light-rays-and-particles-hwxv4n2viqumc0qehttps://www.istockphoto.com/photo/bald-eagle-perched-on-stump-alaska-gm108221750-7740003https://www.istockphoto.com/photo/sherlock-holmes-hat-gm182692240-1275363