Adult brown pelican (Pelecanus occidentalis) on Bartolome Island in the Galapagos Island Group, Ecuador. Pacific Ocean.

An aerial view of Isla San Marcos off the Baja Peninsula on the Gulf of California (Sea of Cortez) side. Baja California, Mexico. Note the dock and white gypsum mine operation on the lower (SW) side of the island.

An aerial view of the Midriff region off the Baja Peninsula on the Gulf of California (Sea of Cortez) side. Baja California, Mexico. Foreground includes San Francisquito Harbor, then the midriff islands of San Lorenzo, Isla San Esteban, and finally Isla T

An adult spinetail mobula (Mobula japanica) cruising the surface in the calm waters off Isla del Carmen in the Gulf of California (Sea of Cortez), Baja California, Mexico.

Short-finned pilot whale (Globicephala macrorhynchus) fluke-up dive off Isla Ildefonso in the Gulf of California (Sea of Cortez), off the Baja Peninsula, Mexico. Note the upturned tips on the flukes - typical in this species.

An adult yellow-footed gull (Larus livens) on the nesting area on Isla San Esteban in the midriff region of the Gulf of California (Sea of Cortez), Baja California, Mexico. This gull species in endemic to the Gulf of California.

Honeymoon Cove on Danzante Island near the Baja Peninsula on the Gulf of California (Sea of Cortez) side. Baja California, Mexico.