<P> The location of the burial may be determined taking into account concerns surrounding health and sanitation, religious concerns, and cultural practices . Some cultures keep the dead close to provide guidance to the living, while others "banish" them by locating burial grounds at a distance from inhabited areas . Some religions consecrate special ground to bury the dead, and some families build private family cemeteries . Most modern cultures document the location of graves with headstones, which may be inscribed with information and tributes to the deceased . However, some people are buried in anonymous or secret graves for various reasons . Sometimes multiple bodies are buried in a single grave either by choice (as in the case of married couples), due to space concerns, or in the case of mass graves as a way to deal with many bodies at once . </P> <P> Alternatives to burial may include cremation, burial at sea, promession, cryopreservation, and others . Some human cultures may bury the remains of beloved animals . Humans are not the only species which bury their dead; the practice has been observed in chimpanzees, elephants, and possibly dogs . </P> <P> Intentional burial, particularly with grave goods, may be one of the earliest detectable forms of religious practice since, as Philip Lieberman suggests, it may signify a "concern for the dead that transcends daily life ." Evidence suggests that the Neanderthals were the first human species to practice burial behavior and intentionally bury their dead, doing so in shallow graves along with stone tools and animal bones . Exemplary sites include Shanidar in Iraq, Kebara Cave in Israel and Krapina in Croatia . Some scholars, however, argue that these bodies may have been disposed of for secular reasons . </P> <P> The earliest undisputed human burial dates back 100,000 years . Human skeletal remains stained with red ochre were discovered in the Skhul cave at Qafzeh, Israel . A variety of grave goods were present at the site, including the mandible of a wild boar in the arms of one of the skeletons . </P>

Where did the tradition of burying the dead come from
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