3. Dubois’ reef sea snake (Aipysurus duboisii)
LD50: 0.04
Dubois’ reef sea snake ranks 3rd in our list of the 20 most venomous snakes in the world. The most venomous aquatic snake species occupies tropical coasts of north Australia, Papua New Guinea, and New Caledonia. The average body length is around 80 cm, and coloration and patterning greatly vary.
Luca Vaime/Shutterstock.com
