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Porpita porpita, or the blue button, is a marine organism consisting of a colony of hydroids [ 2] found in the warmer, tropical and sub-tropical waters of the Pacific, [ 3] Atlantic, and Indian oceans, as well as the Mediterranean Sea and eastern Arabian Sea. [ 4] It was first identified by Carl Linnaeus in 1758, under the basionym Medusa ...
While many sea animals produce blue and green bioluminescence, a siphonophore in the genus Erenna was only the second life form found to produce a red light (the first one being the scaleless dragonfish Chirostomias pliopterus). [8] [9]
This is the chemical reaction in which chemical energy is converted to light energy. It is estimated that 90% of deep-sea animals produce some sort of bioluminescence. Considering that a large proportion of the visible light spectrum is absorbed before reaching the deep sea, most of the emitted light from the sea-animals is blue and green.
The iridescent nacre that lines the inside of the shell varies in color from silvery white, to pink, red and green-red to deep blue, green to purple. The animal has fimbriated head lobes and side lobes that are fimbriated and cirrated. The radula has small median teeth, and the lateral teeth are single and beam-like.
While most marine bioluminescence is green to blue, some deep sea barbeled dragonfishes in the genera Aristostomias, Pachystomias and Malacosteus emit a red glow. This adaptation allows the fish to see red-pigmented prey, which are normally invisible to other organisms in the deep ocean environment where red light has been filtered out by the ...
Marine iguana. The marine iguana ( Amblyrhynchus cristatus ), also known as the sea iguana, saltwater iguana, or Galápagos marine iguana, is a species of iguana found only on the Galápagos Islands ( Ecuador ). Unique among modern lizards, it is a marine reptile that has the ability to forage in the sea for algae, which makes up almost all of ...
Velella. Velella is a monospecific genus of hydrozoa in the Porpitidae family. Its only known species is Velella velella, [ 2] a cosmopolitan (widely distributed) free-floating hydrozoan that lives on the surface of the open ocean. It is commonly known by the names sea raft, by-the-wind sailor, purple sail, little sail, or simply Velella.
The leafy seadragon is related to the pipefish and belongs to the family Syngnathidae, along with the seahorse. It differs from the seahorse in appearance, form of locomotion, and its inability to coil or grasp things with its tail. A related species is the weedy seadragon, which is multicoloured and grows weed-like fins, but is smaller than ...