Timber Rattlesnake (Crotalus horridus)の写真素材

This individual is a yearling (year old, born last fall) even though his length might suggest otherwise. These young rattlesnakes tend to grow quickly and some growth models have suggested that once they reach three feet in length, their growth shifts to mass over length. This is likely because snakes under three feet are more heavily preyed upon than larger individuals and once over three feet in length, body mass becomes an important factor for reproduction.