- https://www.bbc.co.uk/travel/article/20240722-cannonball-factory-and-a-church-revealed-under-spains-dried-up-lake
- https://www.npr.org/sections/health-shots/2014/11/25/366545524/how-can-vultures-eat-rotten-roadkill-and-survive
- https://www.aeaweb.org/articles?id=10.1257/aer.20230016