World's most painful ant sting targets nerves in the same way scorpion venom does
Bullet and greenhead ants produce toxins they inject with every sting, which prolong nerve signals to the brain and lead to trembling, uncontrollable and long-lasting pain in mammals.
https://www.livescience.com/animals/ants/worlds-most-painful-ant-sting-targets-nerves-in-the-same-way-scorpion-venom-does