N. clarkii is the only species to establish itself in this saline niche, drinking only rainwater when it is available, and at other times swallowing nothing but prey animals with the same diluted body fluids as their own.
N. clarkii is the only species to occupy this saline niche, drinking solely rainwater when it's available, and at other times consuming nothing but prey animals with the same diluted body fluids as their own.