We arrived at Cabo San Lucas around 8:30 a.m. and our guests disembarked to enjoy shopping, birding, or snorkeling. The snorkelers went to a beach called Playa Santa Maria, where we entered the water via coarse sand and headed for the rocks. Immediately we were graced by a multitude of colorful fish, among them barberfish flitting about cleaning other fish, king angelfish giving us sideways glances, and Cortez and giant damselfish protecting their territories in nuptial colors. Some of our guests even saw an octopus changing color as it moved about among the rocks. Always on the lookout for hidden treasures, I looked for less conspicuous fish on the rocks. I was eventually rewarded with this jewel moray eel (Muraena lentiginosa). These animals are perfectly adapted for hunting among the tiny crevices of the rocky reefs with their long, muscular, scaleless bodies and large gaping mouths filled with sharp recurved teeth. Respiration in this animal requires that their mouths be open almost constantly, giving this animal a truly menacing look.