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The most common tooth-borne expander is known as the Hyrax (hygienic rapid expander) or Biedermann appliance. This appliance was developed by Bidermann. Hyrax is also known as the "hygienic appliance" because it does not lead to irritation of tissues due to the absence of palatal acrylic.
A palatal expander Upper and lower jaw functional expanders. A palatal expander is a device in the field of orthodontics which is used to widen the upper jaw [1] so that the bottom and upper teeth will fit together better. [2] [3] This is a common orthodontic procedure. The use of an expander is most common in children and adolescents 8–18 ...
Craigslist headquarters in the Inner Sunset District of San Francisco prior to 2010. The site serves more than 20 billion [17] page views per month, putting it in 72nd place overall among websites worldwide and 11th place overall among websites in the United States (per Alexa.com on June 28, 2016), with more than 49.4 million unique monthly visitors in the United States alone (per Compete.com ...
Sampling a rock hyrax midden from the Gifberg Pass, Western Cape, South Africa. A rock hyrax midden is a stratified accumulation of fecal pellets and a brown amber-like a urinary product known as hyraceum excreted by the rock hyrax and closely related species.
Hyraceum (/ h aɪ ˈ r eɪ s i ə m /) is the petrified and rock-like excrement composed of both urine and feces of the rock hyrax (Procavia capensis) and closely related species.. The rock hyrax defecates in the same location over generations, which may be sheltered in caves.
The words "rabbit", "hare", or "coney" appear as terms for the hyrax in some English translations of the Bible. Early English translators had no knowledge of the hyrax (Hebrew שָּׁפָן shaphan[9]), and therefore no name for them. Not only in English but also in the Greek and the Latin translation they are talking about rabbits and hares.
Parapliohyrax is an extinct genus of large hyracoid, a group today represented only by the diminutive hyraxes, but showing in fossil archives a large diversity in ecology and morphology. Parapliohyrax lived during the Miocene period, in various localities spanning the entirety of the African continent.
Hyraxes are well-furred, rotund animals with short tails. [3] Modern hyraxes are typically between 30 and 70 cm (12 and 28 in) in length and weigh between 2 and 5 kg (4 and 11 lb). They are superficially similar to marmots, or over-large pikas, but are much more closely related to elephants and sirenians. Hyraxes have a life span from nine to ...