Results 1 results found Lava lizard (Microlophus spp) courtship behavior in the Galapagos Islands Archipelago, UNESCO World Heritage Site, Ecuador, South America Split image of rocks and underwater substrate, St. Peter and St. Paul's rocks, Brazil, South America Snorkeller dives down to observe the substrate, St. Peter and St. Paul's rocks, Brazil, South America Underwater substrate, St. Peter and St. Paul's rocks, Brazil, South America Underwater substrate, St. Peter and St. Paul's rocks, Brazil, South America Underwater substrate, St. Peter and St. Paul's rocks, Brazil, South America Stoplight parrotfish nibbles algae from the substrate of a reef in the Florida Keys. Rocky substrate, in the first few meters below the surface of the ocean. Volcanic underwater bottoms. La Gomera, Canary Islands.