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Dwarfism is a condition of people and animals marked by unusually small size or short stature. [1] In humans, it is sometimes defined as an adult height of less than 147 centimetres (4 ft 10 in), regardless of sex; the average adult height among people with dwarfism is 120 centimetres (4 ft).
Dwarves were long-lived, with a lifespan of some 250 years. [ T 1 ] They breed slowly, for no more than a third of them are female, not all marry, and they have children only late in life. Tolkien names only one female, Dís, Thorin's sister.
There are several proposed explanations for the mechanism which produces such dwarfism. [3] [4]One is a selective process where only smaller animals trapped on the island survive, as food periodically declines to a borderline level.
A black dwarf is a theoretical stellar remnant, specifically a white dwarf that has cooled sufficiently to no longer emit significant heat or light. Because the time required for a white dwarf to reach this state is calculated to be longer than the current age of the universe (13.8 billion years), no black dwarfs are expected to exist in the ...
A dwarf (pl. dwarfs or dwarves) is a type of supernatural being in Germanic folklore. Accounts of dwarfs vary significantly throughout history. Accounts of dwarfs vary significantly throughout history.
Primordial dwarfism (PD) is a form of dwarfism that results in a smaller body size in all stages of life beginning from before birth. [1] More specifically, primordial dwarfism is a diagnostic category including specific types of profoundly proportionate dwarfism, in which individuals are extremely small for their age, even as a fetus.
On average, domestic rabbits can live to be between 8 and 12 years old, says Blue Cross, a British animal welfare nonprofit. The oldest recorded domestic rabbit lived to be 18 years and 10 months ...
Brown dwarfs are substellar objects that have more mass than the biggest gas giant planets, but less than the least massive main-sequence stars.Their mass is approximately 13 to 80 times that of Jupiter (M J) [2] [3] —not big enough to sustain nuclear fusion of ordinary hydrogen (1 H) into helium in their cores, but massive enough to emit some light and heat from the fusion of deuterium (2 H).