Loss of habitat is the single greatest threat to any species. If an island on which an endemic organism lives becomes uninhabitable for some reason, the species will become extinct. Any type of habitat surrounded by a different habitat is in a similar situation to an island.
Waltham, MA. Waltham is a city in Middlesex County, Massachusetts, United States, was an early center for the labor movement, and major contributor to the American Industrial Revolution.
See also: Historic Places in Framingham, Massachusetts. Framingham, sited on the ancient trail known as the Old Connecticut Path, was first settled when John Stone settled on the west bank of the Sudbury River in 1647.