most painful

https://www.businessinsider.com/heres-why-crocodiles-are-100-times-deadlier-than-sharks-2015-8
https://australianmuseum.net.au/yellow-faced-whip-snake
https://www.healthline.com/health/ascariasis#complications
https://www.abchomeandcommercial.com/blog/assassin-bug-texas/
https://www.health24.com/Lifestyle/Man/Your-life/Bitten-by-a-mamba-in-the-Dusi-What-happens-to-the-body-20120721
https://www.australiawidefirstaid.com.au/redback-spider-bite/
https://www.washingtonpost.com/news/animalia/wp/2016/05/28/they-are-evil-monsters-that-attack-us-night-and-day-senegals-killer-hippo-problem/?noredirect=on&utm_term=.77b75a271d4a
https://www.azula.com/stonefish-sting-2540648433.html
https://en.wikipedia.org/wiki/Irukandji_syndrome