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Although skin tone differs based on a person's racial background, those with fair skin have difficulty maintaining [clarification needed] skin tone due to a lack of melanin production. In Japan, the preference for skin that is white and free of blemishes has been documented since at least the Heian period (794–1185), as in books such as The ...
Fishing charters most often look for floating debris and frigatebirds near the edge of the reef in about 120 feet (37 m) of water. Mahi-mahi (and many other fish) often swim near debris such as floating wood, five-gallon bucket lids, palm trees and fronds, or sargasso weed lines and around fish buoys. Frigatebirds search for food accompanying ...
All true fish with scales have fins, but the converse is not true. All fish in this article have true (visible) fish scales, an endoskeleton, fins, and gills (as opposed to lungs). The requirement for gills is not part of any religious rule, but biologically it is an identifying characteristic of true fish.
The physical appearance of each type is briefly described, including colour adjectives referring to skin and hair colour: rufus "red" and pilis nigris "black hair" for Americans, albus "white" and pilis flavescentibus "yellowish hair" for Europeans, luridus "yellowish, sallow", pilis nigricantibus "swarthy hair" for Asians, and niger "black ...
Nature is full of many patterned animals, from the stripes on zebras, spots on leopards, to the intricate details on sea creatures.. Researchers have studied for a long time the biological ...
This is an accepted version of this page This is the latest accepted revision, reviewed on 28 January 2025. "Skin pigmentation" redirects here. For animal skin pigmentation, see Biological pigment. Extended Coloured family from South Africa showing some spectrum of human skin coloration Human skin color ranges from the darkest brown to the lightest hues. Differences in skin color among ...
Amphibians such as frogs have three kinds of star-shaped chromatophore cells in separate layers of their skin. The top layer contains 'xanthophores' with orange, red, or yellow pigments; the middle layer contains 'iridophores' with a silvery light-reflecting pigment; while the bottom layer contains 'melanophores' with dark melanin. [53]
“The eye is bright red, fire-red or deep red in specimens of both sexes,” according to the study. The pitviper’s red eyes stand out against the green landscape and black night.