1350-1814 - San Esteban Spiny-tailed Iguana (Ctenosaura conspicuosa), an endemic iguana found only on Isla San Esteban in the Gulf of California, Sea of Cortez, Mexico
1350-1813 - Endemic giant barrel cactus (Ferocactus diguetii), Isla Santa Catalina, Gulf of California (Sea of Cortez), Baja California Sur, Mexico, North America
1350-1854 - A smooth hammerhead shark (Sphyrna zygaena), swims under the surface in open ocean, breaking the water with its dorsal fin, Sea of Cortez, Mexico
1112-2946 - A large school of convict tang (Acanthurus triostegus) on the only living reef in the Sea of Cortez, Cabo Pulmo, Baja California Sur, Mexico, North America
1112-2967 - A large school of convict tang (Acanthurus triostegus) on the only living reef in the Sea of Cortez, Cabo Pulmo, Baja California Sur, Mexico, North America
1112-2968 - A large school of convict tang (Acanthurus triostegus) on the only living reef in the Sea of Cortez, Cabo Pulmo, Baja California Sur, Mexico, North America
1112-2965 - A large school of convict tang (Acanthurus triostegus) on the only living reef in the Sea of Cortez, Cabo Pulmo, Baja California Sur, Mexico, North America
1112-2969 - A large school of yellowtail surgeonfish (Prionurus punctatus) on the only living reef in the Sea of Cortez, Cabo Pulmo, Baja California Sur, Mexico, North America
1112-2966 - A large school of convict tang (Acanthurus triostegus) on the only living reef in the Sea of Cortez, Cabo Pulmo, Baja California Sur, Mexico, North America
832-67323 - A park ranger watches as visitors climb a ladder to enter the Balcony House cliff dwelling at Mesa Verde National Park, featuring cliff dwellings of ancestral Puebloans that are nearly a thousand years old, Cortez, Colorado, USA
832-67324 - A park ranger climbs a ladder to enter the Balcony House cliff dwelling at Mesa Verde National Park, featuring cliff dwellings of ancestral Puebloans that are nearly a thousand years old, Cortez, Colorado, USA
832-67325 - Visitors tour the Spruce Tree House cliff dwelling at Mesa Verde National Park, featuring cliff dwellings of ancestral Puebloans that are nearly a thousand years old, Cortez, Colorado, USA
1112-285 - Long-beaked common dolphins (Delphinus capensis), Isla San Esteban, Gulf of California (Sea of Cortez), Baja California, Mexico, North America
1112-390 - Sperm whale (Physeter macrocephalus) surfacing, Isla San Pedro Martir, Gulf of California (Sea of Cortez), Baja California Norte, Mexico, North America
1112-385 - Adult red-billed tropicbird (Phaethon aethereus), Isla San Pedro Martir, Gulf of California (Sea of Cortez), Baja California, Mexico, North America