Beaver
Castor canadensis
Size: 3-4 ft ( total length )
Habitat: in and around water
Notes:
Famous for their dam-building habits, beavers were once a major ecological force in North America, reshaping a very large proportion of the land to suit themselves. Unfortunately for them, they also became a major economic force - much of the early exploration of the continent was done by fur trappers. Today, beavers are rare, and virtually non-existent in New Jersey, although there are a few colonies.