What Are The Top 2 Most Venomous Marine Animals?

What Are The Top 2 Most Venomous Marine Animals? Box Jellyfish. Stonefish. Blue-Ringed Octopus. Beaked Sea Snake. Marbled Cone Snail. Portuguese Man O’ War. Pufferfish. Striped Pyjama Squid. What is the most venomous marine animal? This includes the Australian box jellyfish (Chironex fleckeri), considered the most venomous marine animal. Chironex fleckeri is the largest of