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.
Northborough is located in Central Massachusetts, and shares a border with five towns and one city: 1  Southborough is located to the southeast. The border, however, is only 500 yards long and is in the woods with no accessible trail.  Marlborough is located to the north of Southborough and due east of Northborough.