While the question asks about big animals, the deadliest animal to humans overall is actually quite small: the mosquito. However, considering big animals specifically, snakes are the clear frontrunner, killing far more people than other large creatures like lions.
According to Statista, here's a breakdown of deaths caused by various animals:
| Animal | Estimated Annual Deaths |
|---|---|
| Mosquitos | ~1,000,000 |
| Snakes | ~100,000 |
| Dogs | Significant (Ranked 3rd) |
| Lions | ~250 |
It's clear from this data that snakes are the "big" animal responsible for the most human deaths annually. While lions are certainly dangerous, snakebites cause vastly more fatalities. Dogs, while not typically considered overtly dangerous, also contribute significantly to human deaths, primarily through the transmission of rabies.
Therefore, while mosquitoes are the deadliest animal overall, when focusing on big animals, snakes kill the most humans.
