Where tombs were built, minor variation in form and placement from one ethnic group to the next is overshadowed by common features: the structure is partially or fully subterranean, typically rectangular in design and made of stone that is either stacked loosely or cemented with masonry.
Naked mole-rats have a very unusual lifestyle in that they combine a fully subterranean existence with extreme sociality and a proclivity for living in colonies with many (hundreds) individuals [31], [30].
The origin of the currently recognised genera can be dated to the Late Oligocene-Miocene, and their diversification can thus be traced to Miocene ancestors fully adapted to subterranean life, with no evidence of extinct epigean, less modified lineages.
But the politics are, psychologically speaking, subterranean.
Weeks begins reeling off information about the area – about the river Neckinger, which is mentioned in The Canterbury Tales, but is now fully enclosed and subterranean, running underneath the area ("Dickens called it the Venice of Drains," he says).
The diversification within each of these main geographical areas seems thus to have taken place since early Miocene from ancestors fully adapted to the subterranean medium, contrary to most current assumptions about the evolution of the subterranean fauna.
He gave as an example an archeologist who asserted that there was no incompatibility between the position of scientists who had evidence that Native Americans came to North America across the Bering Strait more than ten thousand years ago and the position of Indians who believed that their ancestors arose, fully formed, from a subterranean spirit world.
The meeting between Bilbo and Gollum, which takes place in a vast, watery subterranean cavern, is the one fully enchanted piece of "An Unexpected Journey".
"The meeting between Bilbo and Gollum, which takes place in a vast, watery subterranean cavern, is the one fully enchanted piece of 'An Unexpected Journey,' " A. O. Scott wrote in The New York Times.
The meeting between Bilbo and Gollum, which takes place in a vast, watery subterranean cavern, is the one fully enchanted piece of "An Unexpected Journey". It's a funny, haunting and curiously touching moment that summons the audience to a state of quiet, eager attentiveness.
Typically sewers have low but not fully anoxic, dissolved oxygen levels (approximately 0.5 mg/L), subterranean temperatures, and residence times that range from a few hours to a couple of days depending on the size of the sewer system and the distance from the discharge point to the treatment plant.
