Belcher’s sea snake
Why did it have to be snakes? It’s bad enough that we need to worry about crossing paths with any number of venomous snakes on land, we also have to worry about accidentally swimming into a Hydrophis. In most species of sea snake, bites are rare, but when they do occur paralysis and cardiac arrest are among the possible outcomes. Most sea snakes are not naturally aggressive, but like their land-based brethren, it only takes an accidental disturbance for a good day to go bad. Ironically, there are no recorded deaths from a Belcher’s sea snake, at least that we could find, which may have you scratching your head as to why it’s on this list. Truth be told, only about 25% of bites from this snake possess venom, which the vast majority are to fisherman emptying fish nets, where anti-venom is generally close by. So why is this snake on this list? Well as it turns out, many references claim the Belcher’s sea snake is the most venomous in the world, as estimates show a single bite could kill 1,000 humans.