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First, their mother recalls that initially all of her 19 children started off walking with a bear-crawl (i.e. on their feet rather than their knees). Second, due to an inherited recessive genetic mutation , they have a non-progressive congenital cerebellar ataxia that impairs the balance children normally use to learn to walk bipedally.
Five of the family members (except for another, who has died) walk on all fours with their feet and the palms of their hands in what is called a "bear crawl". [1] [2] Their quadrupedal gait has never been reported in anatomically intact adult humans. The gait is different from the knuckle-walking quadrupedal gait of apes.
Sinha's narrator is a 19-year-old orphan of Khaufpur, born a few days before the 1984 Bhopal disaster, whose spine has become so twisted that he must walk on all fours. Ever since he can remember, he has gone on all fours. Known to everyone simply as Animal, he rejects sympathy, spouts profanity and obsesses about sex.
Five members of one family walk on all fours, leading one scientist to say their condition signals backwards evolution. Other scientists have a different take.
Quadrupedalism is sometimes referred to as being "on all fours", and is observed in crawling, especially by infants. [1] In the 20th century quadrupedal movement was popularized as a form of physical exercise by Georges Hebert. [2] Kenichi Ito is a Japanese man famous for speed running on four limbs in competitions. [3]
Uner Tan syndrome has been linked to intrafamilial marriage and reproduction, which suggests that it is an autosomal recessive disorder. [3] The syndrome's main characteristic is habitual quadrupedalism, meaning they can stand up straight until they try to move, then they walk on their hands and knees.
In addition to the lithotomy position still commonly used by many obstetricians, childbirth positions that are successfully used by midwives and traditional birth-attendants the world over include squatting, standing, kneeling, and on all fours, often in a sequence.
All the common words, idioms, proverbs, and modern academic, literary, scientific, and technical terms of the Urdu language have been listed. Only those obsolete words and idioms have been included which are found in ancient books. They are indicated by the symbol "Qaaf". The English words that are commonly used in Urdu have also been included. [5]