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Vivid orange-red with vertical black stripes and blue patches toward the end of the dorsal and anal fins. 15 cm (5.9 in) [27] Pearlscale angelfish: Centropyge vroliki: With caution: Anterior is gray to pearly white with orange accent around eye, posterior is deep black. 12 cm (4.7 in) [28] Herald's angelfish: Centropyge heraldi: With caution
Eye color. Eye color is a polygenic phenotypic trait determined by two factors: the pigmentation of the eye 's iris [ 1][ 2] and the frequency-dependence of the scattering of light by the turbid medium in the stroma of the iris. [ 3]: 9. In humans, the pigmentation of the iris varies from light brown to black, depending on the concentration of ...
Distribution and habitat. Glaucus atlanticus is the blue sea slug shown here out of water on a beach, and thus collapsed; however, touching the animal directly with your skin can result in a painful sting, with symptoms similar to those caused by the Portuguese man o' war. The slug in the water.
The Atlantic puffin ( Fratercula arctica ), also known as the common puffin, is a species of seabird in the auk family. It is the only puffin native to the Atlantic Ocean; two related species, the tufted puffin and the horned puffin are found in the northeastern Pacific. The Atlantic puffin breeds in Russia, Iceland, Ireland, [ 2] Britain ...
Sea urchins or urchins ( / ˈɜːrtʃɪnz /) are typically spiny, globular animals, echinoderms in the class Echinoidea. About 950 species live on the seabed, inhabiting all oceans and depth zones from the intertidal to 5,000 metres (16,000 ft; 2,700 fathoms). [ 1] Their tests (hard shells) are round and spiny, typically from 3 to 10 cm (1 to 4 ...
Cuttlefish, like other cephalopods, have sophisticated eyes. The organogenesis and the final structure of the cephalopod eye fundamentally differ from those of vertebrates such as humans. [20] Superficial similarities between cephalopod and vertebrate eyes are thought to be examples of convergent evolution. The cuttlefish pupil is a smoothly ...
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 ...
Phyllopteryx Swainson 1839. A seahorse (also written sea-horse and sea horse) is any of 46 species of small marine bony fish in the genus Hippocampus. "Hippocampus" comes from the Ancient Greek hippókampos ( ἱππόκαμπος ), itself from híppos ( ἵππος) meaning "horse" and kámpos ( κάμπος) meaning "sea monster" [ 4][ 5] or ...