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Webbed feet are the result of mutations in genes that normally cause interdigital tissue between the toes to apoptose. [8] Apoptosis , or programmed cell death, in development is mediated by a variety of pathways, and normally causes the creation of digits by death of tissue separating the digits.
Webbed toes is the informal and common name for syndactyly affecting the feet—the fusion of two or more digits of the feet. This is normal in many birds, such as ducks; amphibians, such as frogs; and some mammals, such as kangaroos.
Otters have long, slim bodies and relatively short limbs. Their most striking anatomical features are the powerful webbed feet used to swim, and their seal-like abilities for holding breath underwater. Most have sharp claws on their feet and all except the sea otter have long, muscular tails.
Palmate feet – Chilean flamingo. Totipalmate feet – blue-footed booby. Western grebe presenting a lobate foot. Lobate feet – a chick of the Eurasian coot. The great crested grebe. The feet in loons [2] and grebes [2] [7] are placed far at the rear of the body - a powerful accommodation to swimming underwater, [7] but a handicap for walking.
Many frogs have webbed feet and the degree of webbing is directly proportional to the amount of time the species spends in the water. [54] The completely aquatic African dwarf frog (Hymenochirus sp.) has fully webbed toes, whereas those of White's tree frog (Litoria caerulea), an arboreal species, are only a quarter or half webbed. [55]
Police are asking for the public's help in identifying a mysterious woman found wandering by herself at 3 A.M. who claims to be a mermaid.
The name of Surabaya, Indonesia, is locally believed to be derived from the words "suro" and "boyo" (crocodile), two creatures which, in a local myth, fought each other in order to gain the title of "the strongest and most powerful animal" in the area. It was said that the two powerful animals agreed for a truce and set boundaries; that the ...
Five types [4] of syndactyly have been identified in humans. The corresponding loci associated with these types and their common phenotypical expression are as follows: . type I: 2q34-q36; [5] webbing occurs between middle and ring fingers and/or second and third toes.