They have been slithering north since `86.
Funny, as far as I know timber rattle and copperhead snakes are indigenous in places indicated by Yale. The increase of boas and anacondas in the Everglades is due to releases of pet snakes.
Timber Rattlesnake, Crotalus horridus - New ... - New Jersey
www.nj.gov/dep/fgw/ensp/pdf/end-thrtened/tmbrrattler.pdf
Timber Rattlesnake, Crotalus horridus ... species of snake found in New Jersey. Timber rattlesnakes have dark brown to black ... New Hampshire, New York, Vermont ...
“For example, if carbon emissions are limited and warming is minimal, the copperhead could move into Pennsylvania, Ohio, Indiana, and parts of Illinois.” I grew up in Ohio, I lived in PA, there have been there since I was a babe.
I think most of them are on Congress by now anyway.
Is this for real? Copperhead snakes have been here in the northern United States for who knows how long already.