Today's Washington Post reported that the state of Massachusetts plans to establish a sanctuary for timber rattlesnakes on an off-limits 1,400 acre island in the Quabbin Resevoir, 65 miles west of Boston. The reservoir is the largest body of water in Massachusetts.
There are only 200 timber rattlesnakes left in Massachusetts "in five scattered pockets from Greater Boston to the Berkshires". The fear is that they could disappear from the state because of loss of habitat and being killed by humans.
How well do these snakes swim?