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The colouration ranges from muted colours in the temperate zone species to iridescent blue and green wings and transparent wings in tropical species. [3] The golden or silvery metallic spots on the wings in many species of the Americas gave them the English common name "metalmarks".
The sapphire blue of the upper wings may appear black or neon blue depending on how the light is reflected. The undersides of the hindwings have a cryptic coloration, as they are mottled with different shades of color, varying from gray to brown, while the under sides of the forewings are black with white patches.
They are commonly found in the epipelagic zone, the top layer of the ocean to a depth of about 200 m (660 ft). Numerous morphological features give flying fish the ability to leap above the surface of the ocean. One such feature is fully broadened neural arches, which act as insertion sites for connective tissues and ligaments in a fish's skeleton.
Sea angels are gelatinous, mostly transparent, and very small, with the largest species (Clione limacina) reaching 5 cm. C. limacina is a polar species; those found in warmer waters are far smaller. Some species of sea angels feed exclusively on sea butterflies ; the angels have terminal mouths with the radula common to mollusks, and tentacles ...
The ocean's surface is hit hard by anthropogenic change, and the surface ecosystem is likely already dramatically different from even a few hundred years ago. For example, prior to widespread damming, logging, and industrialisation, more wood may have entered the open ocean, [ 14 ] while plastic had not yet been invented.
The U.S. government made several different gold coins between 1795 and 1933, according to an article by the United States Mint. These included a $2.50 quarter eagle coin, $5 half eagle coin, $10 ...
The queen angelfish (Holacanthus ciliaris), also known as the blue angelfish, golden angelfish, or yellow angelfish, is a species of marine angelfish found in the western Atlantic Ocean. It is a benthic (ocean floor) warm-water species that lives in coral reefs. It is recognized by its blue and yellow coloration and a distinctive spot or "crown ...
They have long, narrow, and pointed wings, and a quite long, graduated, and rather lozenge-shaped tail whose outer feathers are shorter than the central ones. Their flight muscles are rather small to allow for the small cross-section required for plunge-diving, as an adaptive trade-off relative to some sacrifice in flight performance.