I couldn't find estimates for snakes and scorpions and completely ignored the invertebrates here, but from those options, Tigers kill the most humans yearly per wild individual.
There are about 5500 Tigers in the wild killing 50 humans yearly, while 115000 Hippos kill 500 humans yearly.
So Tigers kill 9 humans per thousand individuals, Hippos kill 4, next would be Lions with 2.5 .
Maybe they are the more deadly than Tigers on a per species basis since there are only 2 species of Hippo while 6 living species of Tigers exist... but then the other kill statistics would get a lot more precise as well. And I wont even try to analyze how often humans interact with specific animal groups.
I was just responding to the "deadliest" comment but hippos aren't even in the top 10, unless you're only counting mammals and then they are 3rd. Mosquitos, humans, dogs, snakes, and snails round out the top 5. I guess that fact upset some dog lovers. ¯\_ (ツ)_/¯
Which is terribly underperforming when you consider how many more dogs exist in proximity to humans compared to hippos. If a prankster wizard suddenly conjured a few million hippos into homes around the world you can bet they wouldn't settle for merely snuffing out 50x-70x more humans. On the upside, they'd definitely chomp a lot of people we don't like too
I encountered that a few times growing up too, I'll never forget the ravenous way they murdered every marble they saw without a hint of concern for the devastated marble families left behind .