What key anatomical characteristic defines the Family Viperidae, placing *C. cerastes* among true vipers?

Answer

Having long, hinged fangs located at the front of the upper jaws

Members of the Viperidae family are characterized by possessing long, hinged fangs situated at the front of their upper jaws, which they use for venom injection.

What key anatomical characteristic defines the Family Viperidae, placing *C. cerastes* among true vipers?
taxonomyreptileviperSahara