You guys are making me rethink moving to Texas. I wonder what housing prices in Antarctica are like?
We have had Rattler's here too! Rattler's are larger so they are a little easier to spot. The Coral Snakes are way smaller and hard to see in the grass. Rattler's usually at least warn you they are there by making their noise. While I am no expert, I don't think they actually have an antidote for Coral Snake bites.
I would not want to tangle with any of them!!! Below is the Rattler that came to visit last spring. He was thankfully on the outside of the screening.