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The brilliant iridescent colors of the peacock's tail feathers are created by structural coloration, as first noted by Isaac Newton and Robert Hooke.. Structural coloration in animals, and a few plants, is the production of colour by microscopically structured surfaces fine enough to interfere with visible light instead of pigments, although some structural coloration occurs in combination ...
Crest of the Texas National Guard: February 18, 1924 Flower: Bluebonnets (Lupinus spp., namely Texas bluebonnet, L. texensis and sandy land bluebonnet L. subcarnosus) [1] March 1901 [3] Tree: Pecan (Carya illinoinensis) 1919 Soil: Houston Black: Bird: Northern mockingbird: 1927 [1] [4] Song "Texas, Our Texas" [1] 1929 Mammal (small)
The northern mockingbird is the state bird of Texas. The list of birds of Texas is the official list of species recorded in the U.S. state of Texas according to the Texas Bird Records Committee (TBRC) of the Texas Ornithological Society. As of January 2024, the list contained 664 species. Of them, 170 are considered review species. Eight species were introduced to Texas, two are known to be ...
The blue and white bird in the background lacks the yellow pigment. The dark markings on both birds are due to the black pigment eumelanin . Biological pigments , also known simply as pigments or biochromes , [ 1 ] are substances produced by living organisms that have a color resulting from selective color absorption .
Leucism (/ ˈ l uː s ɪ z əm,-k ɪ z-/) [2] [3] [4] is a wide variety of conditions that result in partial loss of pigmentation in an animal—causing white, pale, or patchy coloration of the skin, hair, feathers, scales, or cuticles, but not the eyes. [4]
Lygodesmia texana, the Texas skeleton plant, is a species of flowering plant in the family Asteraceae, native to the US states of New Mexico, Texas, and Oklahoma, and to northeastern Mexico. [ 1 ] [ 2 ] A perennial reaching at most 2 ft (60 cm), it prefers to grow on well-drained limestone soil and blooms from April to August.
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The scarlet snake is relatively small, growing to a total length (including tail) of 14-26 inches (36–66 cm) at adult size. The dorsal pattern consists of a light gray ground color, with a series of black-bordered red, white or yellow blotches down the back. The belly is either a uniform light gray or white color.