How do rattlesnakes help?
Rattlesnakes help control the populations of rodents, such as rats and mice. These rodents can carry diseases that are dangerous to humans. Rodents also destroy or damage human food.
They warn you with their rattle at the end of their tail when you are to close to get away before they strike at you.
Rattlesnakes are entirely beneficial as long as they are left alone. They consume large numbers of rodents which can carry diseases harmful to humans and they damage or destroy human food and crops. If you mess with rattlesnakes, however, you could end up in the hospital for several days being treated for a venomous snakebite.
No there are no Rattlesnakes on Martha's Vineyard. However there are Rattlesnakes in Massachusetts. They are called Timber Rattlesnakes and they are found in the Blue Hills Reservation near Boston, and the Connecticut River Valley and the Berkshires. Rattlesnakes in Massachusetts are ENDANGERED so it is illegal to kill, Harm, or Harass these reptiles.