What does the curse on the serpent mean?

When God cursed the Earth He also cursed the serpent. >Genesis 3:14 NASB > >The Lord God said to the serpent, "Because you have done this, Cursed are you more than all cattle, And more than every beast of the field; On your belly you will go, And dust you will eat All the days of your life; Is the serpent specifically Satan? If not, is there a practical outworking of this curse seen in serpents today? We surely see the other curses of labor pains in childbirth and toilsome labor.