Dorsal and Caudal fins of the Ocean Sunfish Mola mola, as it Swims in the Open Ocean, near San Diego. The caudal fin is not a true tail but is a tail-like structure called a clavus that serves as a rudder. The dorsal (top) and anal (bottom) fins are used for propulsion.
Species: Ocean sunfish, Mola mola
Location: San Diego, California
Image ID: 39407
Milky Way over Sandstone Fins. Sandstone fins stand on edge. Vertical fractures separate standing plates of sandstone that are eroded into freestanding fins, that may one day further erode into arches.
Location: Arches National Park, Utah
Image ID: 29254
Sandstone Fins at sunset, near Moab Utah. Fins like these form in sandstone and eventually some will continue to erode until they form natural stone arches, such as those in Arches National Park.
Location: Moab, Utah
Image ID: 38224
Panorama dimensions: 3172 x 8298
The Great Wall, Navajo Tribal Lands, Arizona. Sandstone "fins", eroded striations that depict how sandstone -- ancient compressed sand -- was laid down in layers over time. Now exposed, the layer erode at different rates, forming delicate "fins" that stretch for long distances.
Location: Navajo Tribal Lands, Page, Arizona
Image ID: 26643
Sunrise light touches the Fins. Sandstone fins stand on edge. Vertical fractures separate standing plates of sandstone that are eroded into freestanding fins, that may one day further erode into arches.
Location: Arches National Park, Utah
Image ID: 29255
Epaulette shark. The epaulette shark is primarily nocturnal, hunting for crabs, worms and invertebrates by crawling across the bottom on its overlarge fins.
Species: Epaulette shark, Hemiscyllium ocellatum
Image ID: 14958
Fins. The vertical slabs of Entrada sandstone may become natural sandstone arches.
Location: Arches National Park, Utah
Image ID: 18187
Milky Way over Sandstone Fins. Sandstone fins stand on edge. Vertical fractures separate standing plates of sandstone that are eroded into freestanding fins, that may one day further erode into arches.
Location: Arches National Park, Utah
Image ID: 29253
Panorama dimensions: 7791 x 15529
The Great Wall, Navajo Tribal Lands, Arizona. Sandstone "fins", eroded striations that depict how sandstone -- ancient compressed sand -- was laid down in layers over time. Now exposed, the layer erode at different rates, forming delicate "fins" that stretch for long distances.
Location: Navajo Tribal Lands, Page, Arizona
Image ID: 26644
Guy stands in shallow water wearing his long fins, takes photo of his shadow.
Location: Cardiff by the Sea, California
Image ID: 23298
Humpback whale with one of its long pectoral fins raised aloft out of the water, swimming on its side (laterally) as it does so.
Species: Humpback whale, Megaptera novaeangliae
Location: Maui, Hawaii
Image ID: 01470
Male humpback whale with head raised out of the water, braking and pushing back at another whale by using pectoral fins spread in a "crucifix block", during surface active social behaviours.
Species: Humpback whale, Megaptera novaeangliae
Location: Maui, Hawaii
Image ID: 04106
Sandstone fins stand on edge. Vertical fractures separate standing plates of sandstone that are eroded into freestanding fins, that may one day further erode into arches.
Location: Arches National Park, Utah
Image ID: 29256
Panorama dimensions: 6933 x 11514
Sandstone "fins", eroded striations that depict how sandstone -- ancient compressed sand -- was laid down in layers over time. Now exposed, the layer erode at different rates, forming delicate "fins" that stretch for long distances.
Location: Navajo Tribal Lands, Page, Arizona
Image ID: 26646
Sandstone "fins", eroded striations that depict how sandstone -- ancient compressed sand -- was laid down in layers over time. Now exposed, the layer erode at different rates, forming delicate "fins" that stretch for long distances.
Location: Navajo Tribal Lands, Page, Arizona
Image ID: 26647
The Great Wall, Navajo Tribal Lands, Arizona. Sandstone "fins", eroded striations that depict how sandstone -- ancient compressed sand -- was laid down in layers over time. Now exposed, the layer erode at different rates, forming delicate "fins" that stretch for long distances.
Location: Navajo Tribal Lands, Page, Arizona
Image ID: 26675
Sandstone "fins", eroded striations that depict how sandstone -- ancient compressed sand -- was laid down in layers over time. Now exposed, the layer erode at different rates, forming delicate "fins" that stretch for long distances.
Location: Navajo Tribal Lands, Page, Arizona
Image ID: 26676
Sandstone "fins", eroded striations that depict how sandstone -- ancient compressed sand -- was laid down in layers over time. Now exposed, the layer erode at different rates, forming delicate "fins" that stretch for long distances.
Location: Navajo Tribal Lands, Page, Arizona
Image ID: 26678
Sandstone "fins", eroded striations that depict how sandstone -- ancient compressed sand -- was laid down in layers over time. Now exposed, the layer erode at different rates, forming delicate "fins" that stretch for long distances.
Location: Navajo Tribal Lands, Page, Arizona
Image ID: 26679
The Great Wall, Navajo Tribal Lands, Arizona. Sandstone "fins", eroded striations that depict how sandstone -- ancient compressed sand -- was laid down in layers over time. Now exposed, the layer erode at different rates, forming delicate "fins" that stretch for long distances.
Location: Navajo Tribal Lands, Page, Arizona
Image ID: 26614
Sandstone "fins", eroded striations that depict how sandstone -- ancient compressed sand -- was laid down in layers over time. Now exposed, the layer erode at different rates, forming delicate "fins" that stretch for long distances.
Location: Navajo Tribal Lands, Page, Arizona
Image ID: 26645
Sandstone "fins", eroded striations that depict how sandstone -- ancient compressed sand -- was laid down in layers over time. Now exposed, the layer erode at different rates, forming delicate "fins" that stretch for long distances.
Location: Navajo Tribal Lands, Page, Arizona
Image ID: 26677
Sandstone "fins", eroded striations that depict how sandstone -- ancient compressed sand -- was laid down in layers over time. Now exposed, the layer erode at different rates, forming delicate "fins" that stretch for long distances.
Location: Navajo Tribal Lands, Page, Arizona
Image ID: 26680
Sandstone "fins", eroded striations that depict how sandstone -- ancient compressed sand -- was laid down in layers over time. Now exposed, the layer erode at different rates, forming delicate "fins" that stretch for long distances.
Location: Navajo Tribal Lands, Page, Arizona
Image ID: 26681
Sandstone "fins", eroded striations that depict how sandstone -- ancient compressed sand -- was laid down in layers over time. Now exposed, the layer erode at different rates, forming delicate "fins" that stretch for long distances.
Location: Navajo Tribal Lands, Page, Arizona
Image ID: 26682