King Cobra
The king cobra (Ophiophagus hannah) is the longest venomous snake in the world. Its bite delivers a tremendous amount of paralysis-inducing neurotoxins. The snake’s venom is so strong and so voluminous that it can kill an elephant in just a few hours. Death also results in at least 50 to 60 percent of untreated human cases.

It can kill an elephant but only kills half of untreated bites on humans?