Box jellyfish, Irukandji jellyfish, cobbler fish and stingrays: What is it like to be stung or jabbed by these toxic animals?

Delicate and deadly: box jellyfish have 60 billion heart-stopping poison sacs on their tentacles.

via Box jellyfish, Irukandji jellyfish, cobbler fish and stingrays: What is it like to be stung or jabbed by these toxic animals?