25 Of The Most Dangerous Animals In The World
1. Box Jellyfish
Named for its boxy shape, this jellyfish has a sting that can cause cardiac arrest and nerve damage if given a hefty enough dose of it!
Its tentacles stretch more than two meters (6.4 feet), and they can lurk in muddy, unclear waters during the warmer months when people are looking to go swimming. It's for these reasons that National Geographic gave this feared aquatic species a 10/10 danger rating.
Rather than drifting as regular jellyfish do, their danger is made worse by how fast they can swim, with box jellyfish capable of reaching speeds of up to 1.5 to 2 metres per second, which doesn't bode well if you're trying to swim away from one.