humans with tails evolution

Finally, an article in Human Pathology explains: "In humans a true tail, is vestigial, however, and never contains vertebrae. The appendage had a long ball on the end, with scientists calling it a "true human tail". Bagariaa, The human tail: rare lesion with occult spinal dysraphisma case report, Journal of Pediatric Surgery, 43: E41-E43 (2008) (emphasis added). A paper in the Journal of Pediatric Surgery finds that human tails are often associated with occult spinal dysraphism.26 A paper in British Journal of Plastic Surgery notes the tail is potentially a site of peculiar tumours.27 A paper in Journal of Perinatology states: Caudal appendages also occur as typical or frequent manifestations of certain syndromes.28 A paper in the Journal of the Indian Association of Pediatric Surgery states, Tails are usually associated with occult spinal dysraphism.29 A paper in Pediatric Neurosurgery found: Children born with a tail-like appendage have a rare malformation that is frequently associated with abnormalities of the spine and spinal cord. And, in a way, we still do. Allan Joel Belzberg, Stanley Terence Myles, and Cynthia Lucy Trevenen, The Human Tail and Spinal Dysraphism, Journal of Pediatric Surgery, 26: 1243-1245 (October, 1991). In a few weeks these formations disappear from the human embryo. (p. 200) Except that human embryos in fact never have gills,13 and webbed feet (syndactyly) in embryos arent a holdover from our amphibian ancestors but are part of a normal (and quite logical) way that hands and feet develop.14 In any case, Gibersons attempt to describe human tails as a regression is undermined by the evidence of how so-called true tails develop. Alternatively, tails with lipomas involving only the inferior conus medullaris or filum terminale may not involve primary neurulation at all. Hector E. James and Timothy G. Canty, Human Tails and Associated Spinal Anomalies, Clinical Pediatrics, 34: 286-288 (1995) (emphasis added). [This article was adapted from a series of articles originally published on Evolution News & Views. Deepak Kumar Singha, Basant Kumarb, V.D. Luskina lawyerstarts by noting that there is still much debate over why tails arise during development, but fails to mention that this debate is not about whether the tail sometimes represents the reappearance of an ancestral feature. [40.] Frank L. Lu, Pen-Jung Wang, Ru-Jeng Teng, and Kuo-Inn Tsou Yau, The Human Tail, Pediatric Neurology, 19 No. Found insideThese slits are found in the embryos of all vertebrates because they share as common ancestors the fish in which these structures first evolved. Human embryos also exhibit by the fourth week of development a welldefined tail, Some used to speculate that it was inherited, since family members often share the condition, but it is also common for only one member of a family to have webbed toes. The unwanted appendages attached to babies are classified as either true tails, which I have been discussing, or pseudotails, which are birth defects that only resemble tails, like a blob of flesh hanging from the lower back. When a human grows a tail, it's known as a human tail or vestigial tail. Human tail is a curiosity, a cosmetic stigma and presents as an appendage in the lumbosacral region. Not true. In fact, the question of why humans lack tails has plagued Bo Xia, an NYU Grossman School of Medicine stem cell biology graduate student, since he was a child, he told the New York Times. All humans begin with a tail (that can grow up to 1/6 the size of the embryo) and then as the embryo starts developing, the tail gets absorbed by the rest of the body. As we evolved through time, responding to different environmental pressures, natural selection pruned and edited, making our ancestors better at some thingslike talkingwhile ignoring skills and characteristics that became less relevant in new contextslike smelling. As a general rule, tails are not found in otherwise healthy babies. Published on 12/5/2016 at 12:00 PM. The ancient reptile resembled chubby spaghetti. many [cases of tails] simply represented a form of spina bifida, rather than a true tail. Scientific evidence shows that the physical and behavioral traits shared by all people originated from apelike ancestors and evolved over a period of approximately six million years. Daniel J. Donovan Robert C. Pedersen, Human Tail with Noncontiguous Intraspinal Lipoma and Spinal Cord Tethering: Case Report and Embryologic Discussion, Pediatric Neurosurgery, 41:35-40 (2005) (emphases added). Humans with tails - This is what I believe evolutionists see as their "trump" card. A true tail is thought by some authors to be a benign condition not associated with any underlying spinal cord malformation. Se-Hyuck Park, Jee Soon Huh, Ki Hong Cho, Yong Sam Shin, Se Hyck Kim, Young Hwan Ahn, Kyung Gi Cho, Soo Han Yoon, Teratoma in Human Tail Lipoma, Pediatric Neurosurgery, 41:158-161 (2005). If both pseudotails and true tails are associated with many of the same developmental defects, could that suggest they have similar causes?

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