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Cliff-like erosion escarpment on a Florida beach. The four-to-five foot depth of lost sand exposed egg-shell fragments from a sea turtle nest.

Cliff-like erosion escarpment on a Florida beach. The four-to-five foot depth of lost sand exposed egg-shell fragments from a sea turtle nest.

The ghost crab shown here is a common resident of sandy beaches along the Florida coast.

Red morning sunrise on the Atlantic Ocean as seen from a barrier island.

This photograph, taken soon after dawn, depicts a towering offshore thundercloud as seen from a sandy beach in Florida.

This image depicts a cliff-like escarpment in the sand of a Florida beach. Notice the marked turtle nest (background) and the unusual single exposed egg (right foreground). The protective stakes mark a nest from an earlier week as part of a county research program that marks and records every eighth nest.

Cliff-like erosion escarpment on a Florida beach. The four-to-five foot depth of lost sand exposed egg-shell fragments from a sea turtle nest.

Cliff-like erosion escarpment on a Florida beach. The four-to-five foot depth of lost sand exposed egg-shell fragments from a sea turtle nest.

Cliff-like erosion escarpment on a Florida beach. The four-to-five foot depth of lost sand exposed egg-shell fragments from a sea turtle nest.

Coxe Glacier (in Barry Arm) viewed from Harriman Fiord, western Prince William Sound, AK.

Coxe Glacier (in Barry Arm) viewed from Harriman Fiord, western Prince William Sound, AK.

Beach erosion by a tropical storm produced the cliff-like escarpment seen in this image and accidentally exposed about 8% of the eggs in this loggerhead sea turtle nest.

Beach erosion by a tropical storm produced the cliff-like escarpment seen in this image and accidentally exposed about 8% of the eggs in this loggerhead sea turtle nest. The protective stakes mark a nest from an earlier week as part of a county research program that marks and records every eighth nest.

Beach erosion by a tropical storm produced the cliff-like escarpment seen in this image and accidentally exposed about 8% of the eggs in this loggerhead sea turtle nest. The protective stakes mark a nest from an earlier week as part of a county research program that marks and records every eighth nest.

Beach erosion by a tropical storm produced the cliff-like escarpment seen in this image and accidentally exposed about 8% of the eggs in this loggerhead sea turtle nest. The protective stakes mark a nest from an earlier week as part of a county research program that marks and records every eighth nest.

Beach erosion by a tropical storm produced the cliff-like escarpment seen in this image and accidentally exposed about 8% of the eggs in this loggerhead sea turtle nest. The protective stakes mark a nest from an earlier week as part of a county research program that marks and records every eighth nest.

Panoramic photograph of Hailey, Idaho, looking southeast from Carbonate Mountain. 

This photo, taken at dawn, depicts the tracks left by a nesting loggerhead sea turtle the previous night. (Right: from the sea; Center: the nesting depression; Left: return to the sea.)

Serpentine Glacier, Harriman Fiord, western Prince William Sound, AK.

Serpentine Glacier, Harriman Fiord, western Prince William Sound, AK.

Strangler fig engulfing the trunk of a Sabal palm.