To put this in a perspective, 1 Mosquito 1,000,000 2 Human 475,000 3 Snake 50,000 4 Dog 25,000 5 Tsetse Fly 10,000 6 Assassin Bug 10,000 7 Freshwater Snail 10,000 8 Ascaris Roundworm 2,500 9 Tapeworm 2,000 10 Crocodile 1,000 11 Hippopotamus 500 12 Elephant 100 13 Lion 100 14 Wolf 10 15 Shark 10 https://www.worldatlas.com/articles/the-animals-that-kill-mo...
This is a horrible way to spend the last few seconds of your life on Earth and it likely triggers all the self-preservation instincts in a human mind, and then some.
The slow, painful death from a debilitating disease like malaria does not even come close for sheer compulsive terror. After all, most people experience sickness at some point during their lives, but very few experience being eaten.
This "raw, visceral horror of being eaten alive by a very big fish" [1] is the reason why people are afraid of shark attacks much more than mosquito bites or even accidents etc.
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[1] That's a quote from a National Geographic article I read a few years ago that stuck in my mind. I have no reference to it, apologies. It was in an issue of the print magazine.