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: 26683
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: 04112
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: 04104
Northern ronquil. During breeding season, male ronquils become bright blue with yellow fins.
Species: Northern ronquil, Ronquilus jordani
Image ID: 13715
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: 14959
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: 14960
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: 14961
Fins. The vertical slabs of Entrada sandstone may become natural sandstone arches.
Location: Arches National Park, Utah
Image ID: 18188
Fins. The vertical slabs of Entrada sandstone may become natural sandstone arches.
Location: Arches National Park, Utah
Image ID: 18189
Fins. The vertical slabs of Entrada sandstone may become natural sandstone arches.
Location: Arches National Park, Utah
Image ID: 18190
Fins. The vertical slabs of Entrada sandstone may become natural sandstone arches.
Location: Arches National Park, Utah
Image ID: 18191
Fins. The vertical slabs of Entrada sandstone may become natural sandstone arches.
Location: Arches National Park, Utah
Image ID: 18192
Fins. The vertical slabs of Entrada sandstone may become natural sandstone arches.
Location: Arches National Park, Utah
Image ID: 18193
Courthouse Towers, narrow sandstone fins towering above the surrounding flatlands. The Organ is in the foreground, and Tower of Babel in the distance.
Location: Courthouse Towers, Arches National Park, Utah
Image ID: 18197
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: 00193
Humpback whale lunging clear of the water and falling forward with pectoral fins extended, a behavior known as a head slap.
Species: Humpback whale, Megaptera novaeangliae
Location: Maui, Hawaii
Image ID: 00388
Humpback whale lunging clear of the water and falling forward with pectoral fins extended, a behavior known as a head slap.
Species: Humpback whale, Megaptera novaeangliae
Location: Maui, Hawaii
Image ID: 00389
Humpback whale with both of its long pectoral fins raised aloft out of the water, swimming on its back (inverted) as it does so.
Species: Humpback whale, Megaptera novaeangliae
Location: Maui, Hawaii
Image ID: 01194
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: 01469
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: 01473
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: 01474
Humpback whale with both of its long pectoral fins raised aloft out of the water, swimming on its back (inverted) as it does so.
Species: Humpback whale, Megaptera novaeangliae
Location: Maui, Hawaii
Image ID: 01477
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: 01480
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: 01482