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Giant clams (Tridacna species), like corals, contain symbiotic dinoflagellates called zooxanthellae. Like corals, clams can also bleach during times of warm water temperatures.
Giant clams in Palau
A grey reef shark (Carcharhinus amblyrhynchos) at the Blue Corner, Palau.
Grey reef shark, Palau
The harlequin tuskfish (Choerodon fasciatu) at the Cemetery, Palau
Harlequin tuskfish in Palau
Several marine lakes in the Republic of Palau have been cut off from the sea for 10,000-15,000 years. The jellyfish (Mastigias species) in these lakes have evolved to become stingless. The jellyfish also host symbiotic algae which require sunlight to photosynthesize. In order to provide enough light for their algae, the jellyfish migrate across the lakes during the day, following the sun.
Jellyfish Lake, Palau
Several marine lakes in the Republic of Palau have been cut off from the sea for 10,000-15,000 years. The jellyfish (Mastigias species) in these lakes have evolved to become stingless. The jellyfish also host symbiotic algae which require sunlight to photosynthesize. In order to provide enough light for their algae, the jellyfish migrate across the lakes during the day, following the sun.
Jellyfish Lake, Palau
Several marine lakes in the Republic of Palau have been cut off from the sea for 10,000-15,000 years. The jellyfish (Mastigias species) in these lakes have evolved to become stingless. The jellyfish also host symbiotic algae which require sunlight to photosynthesize. In order to provide enough light for their algae, the jellyfish migrate across the lakes during the day, following the sun.
Jellyfish Lake, Palau
Plate coral at the Cemetery, Palau
Plate coral at the Cemetery, Palau
This plate coral was at one of the sites monitored by the Palau International Coral Reef Center
Plate coral in Palau
Soft coral at the Soft Coral Arch, Palau. The arch is formed by a limestone 'bridge' between two of the Rock Islands
Soft coral, Palau
This staghorn coral was at one of the sites monitored by the Palau International Coral Reef Center
Staghorn coral in Palau
Ulong Island in Palau - the filming location of Survivor: Palau
Ulong Island, Palau
Ulong Island in Palau - the filming location of Survivor: Palau
Ulong Island, Palau
Underwater scenes at The Cemetery, Palau
Underwater in Palau
Underwater scenes at The Cemetery, Palau
Underwater in Palau
The frozen Choptank River, February 2007.
Ice on the Choptank River
The frozen Choptank River, February 2007.
Ice on the Choptank River
Ice on the Choptank River on 6 Feb 2007
Frozen Choptank River
Ice in the Choptank River near the Horn Point Lab dock on 6 Feb 2007
Frozen Choptank River
Frozen Choptank River looking towards Trappe on 6 Feb 2007
Frozen Choptank River looking towards Trappe
Ice in the Choptank River on 6 Feb 2007
Ice in the Choptank River
Ice on rip rap along the Choptank River behind Center Administration
Ice on rip rap
New development on the border of an agricultural field.
Agriculture and new Development in South Florida
Agricultural crops in South Florida. The white flecks in the soil are limestone. The metal pipe is used for irrigation.
Agriculture in South Florida
Construction along Route 1 on the way to the Florida Keys.
Bridge construction
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