As SWGB said, the scorpions here won't kill you, except for possibly being allergic. But to be stung hurts like holy hell. The scorpions do favor pine trees, though. When we moved to Freeport, our house was full of them. They even got in my car.

We also had about 70 small, skinny, lightning-rod, hurricane-projectile pine trees in our 1/2 acre yard. Between the scorpions and the fact that pine trees scare the stuffing out of my spouse for the reasons stated above, we sold the trees for timber. After about three months the scorpions were gone.
(Note that I am typically against tree-cutting, but this was different.)
Snakes are basically everywhere. There are fewer poisonous ones crawling around than there used to be, but all it takes is one. Look up Eastern Diamondback Rattlesnake, Pygmy Rattler, Cottonmouth Moccasin, and Coral Snake. Between those four, that pretty much covers it. Also look up Hognose (aka spreading adders). They are perfectly harmless but will scare you, on purpose, to keep you from hurting it.