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Animal colouration is the general appearance of an animal resulting from the reflection or emission of light from its surfaces. Some animals are brightly coloured, while others are hard to see. In some species, such as the peafowl, the male has strong patterns, conspicuous colours and is iridescent, while the female is far less visible.
Balaenoptera sibbaldii Sars , 1875. The blue whale ( Balaenoptera musculus) is a marine mammal and a baleen whale. Reaching a maximum confirmed length of 29.9 meters (98 ft) and weighing up to 199 tonnes (196 long tons; 219 short tons), it is the largest animal known ever to have existed. [ a] The blue whale's long and slender body can be of ...
Axanthism is a mutation that interferes with an animal's ability to produce yellow pigment. The mutation affects the amount of xanthophores and carotenoid vesicles, sometimes causing them to be completely absent. [1] Erythrophores and iridophores, which are responsible for red coloration and light reflecting pigments respectively, may also be ...
For example, there are only two of these blue astaxanthin-proteins in the jellyfish, Velella velella, contains only about 100 carotenoids per complex. [citation needed] A common carotenoid in animals is astaxanthin, which gives off a purple-blue and green pigment. Astaxanthin's color is formed by creating complexes with proteins in a certain order.
The adults' hues range from a deep slate or bluish-gray to light gray or even grayish-brown. Both sexes possess a pair of large curved horns. The blue wildebeest is an herbivore, feeding primarily on short grasses. It forms herds which move about in loose aggregations, the animals being fast runners and extremely wary.
Description. The Fiji crested iguana is a large stocky lizard distinguished from the Fiji banded iguana by the presence of three narrow, cream to white colored bands on males, rather than the broader bluish bands of the latter species. [ 3] These whitish bands often have chevrons of black scales close to them.
Description. This is a large species of terrestrial blue tongue measuring upwards of 60 centimetres in length and over 1 kilogram in mass. It has a stout body and short legs. [ 2] It is variable in color but generally has a banded pattern. The tongue is blue-violet [ 4] to cobalt blue in color. [ 5] The tongue is used, like most animals in the ...
Psittacus ararauna Linnaeus, 1758. The blue-and-yellow macaw ( Ara ararauna ), also known as the blue-and-gold macaw, is a large Neotropical parrot with a mostly blue dorsum, light yellow/orange venter, and gradient hues of green on top of its head. It is a member of the large group of neotropical parrots known as macaws.