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A dragonfly in its final moult, undergoing metamorphosis, it begins transforming from its nymph form to an adult. Metamorphosis is a biological process by which an animal physically develops including birth transformation or hatching, involving a conspicuous and relatively abrupt change in the animal's body structure through cell growth and differentiation. [1]
In ancient Greece, the surviving Greek mythology features a wide collection of myths where the subjects are physically transformed, usually through either divine intervention or sorcery and spells. [1] Similar themes of physical transformation are found in all types of mythologies, folklore, and visual arts around the world, including those of ...
A form of complete gonadal dysgenesis, mostly due to mutations in the first step of sex determination; the SRY genes. A 5-alpha-reductase deficiency results in atypical development characterized by female phenotype or undervirilized male phenotype with development of the epididymis , vas deferens , seminal vesicle , and ejaculatory duct , but ...
Here the mesoderm extends forward in the form of two crescentic masses, which meet in the middle line so as to enclose behind them an area that is devoid of mesoderm. Over this area, the ectoderm and endoderm come into direct contact with each other and constitute a thin membrane, the buccopharyngeal membrane , which forms a septum between the ...
1722 German woodcut of a werewolf transforming. Popular shapeshifting creatures in folklore are werewolves and vampires (mostly of European, Canadian, and Native American/early American origin), ichchhadhari naag (shape-shifting cobra) of India, shapeshifting fox spirits of East Asia such as the huli jing of China, the obake of Japan, the Navajo skin-walkers, and gods, goddesses and demons and ...
This is an accepted version of this page This is the latest accepted revision, reviewed on 27 January 2025. Problem of the lack of evidence for alien life despite its apparent likelihood This article is about the absence of clear evidence of extraterrestrial life. For a type of estimation problem, see Fermi problem. Enrico Fermi (Los Alamos 1945) The Fermi paradox is the discrepancy between ...
However, at atmospheric pressure, kyanite transforms to andalusite at a temperature of about 190 °C (374 °F). Andalusite, in turn, transforms to sillimanite when the temperature reaches about 800 °C (1,470 °F). At pressures above about 4 kbar (400 MPa), kyanite transforms directly to sillimanite as the temperature increases. [20]
This process results in their body undergoing a transformation, gaining a new physical form and a new personality. Regenerations can be traumatic. In Castrovalva , the Fifth Doctor requires the use of a Zero Room, a chamber shielded from the outside universe that provides an area of calm for him to recuperate.