Bummer: Rattlesnakes allegedly can't slither the allegedly required 5.5 meters per day to escape the allegedly CO2-induced alleged planetary overheating

Fast Climate Change Moves Slow Species: Scientific American Podcast

They found that rattlesnakes, which are cold-blooded, deal with temperature changes by moving: their ranges have shifted about 2 meters a year to keep the snakes inside their comfort zone. Now, if global temperatures increase by another 1 to 6 degrees Celcius] over the next 90 years, as current models predict, rattlers could be forced to slither up to a thousand times farther. And the snakes may not have the legs for such a trip.

But maybe I shouldn't be so worried, after all, I remember when global warming was going to allow pythons to slither from Florida to San Francisco at a rate of 20 miles per month:

one of them has already slithered about 100 miles toward San Francisco...At 20 miles a month, a determined Burmese python from Florida could arrive in San Francisco as early as August 2020.