Any type of fish or crustacean will show up as a silhouette in the water, and these differ in shape and size depending on the ...

"For most of the time the fish was swimming next to our beam of light, and we only saw the silhouette," he said. "When first approached, the fish was hanging horizontally in the water, and after ...

You see the fish’s silhouette wagging along against a desert-mountain backdrop, as if it were still swimming—but now it’s in the sky, over the dam, barrelling back down, and then splash ...

Both species belong to the family Opisthoproctidae, also known as spook fish or “barreleyes”, named for the protruding cylindrical eyes that point upwards to detect the silhouette of prey ...

"I couldn't get a good shot - just fish silhouettes," said Dr Karen Osborn from the Smithsonian Institution. Her detailed study of the animal's "ultra-black" skin revealed that it traps light.