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Troglomorphism is the morphological adaptation of an animal to living in the constant darkness of caves, characterised by features such as loss of pigment, reduced eyesight or blindness, and frequently with attenuated bodies or appendages.
Map of early human migrations based on the Out of Africa theory; figures are in thousands of years ago (kya). [1]The peopling of the Americas began when Paleolithic hunter-gatherers (Paleo-Indians) entered North America from the North Asian Mammoth steppe via the Beringia land bridge, which had formed between northeastern Siberia and western Alaska due to the lowering of sea level during the ...
A troglobite (or, formally, troglobiont) is an animal species, or population of a species, strictly bound to underground habitats, such as caves.These are separate from species that mainly live in above-ground habitats but are also able to live underground (eutroglophiles), and species that are only cave visitors (subtroglophiles and trogloxenes). [1]
Other trogloxenic animals include vertebrates such as bears, hyenas, other predators, reptiles, oilbirds, cave swiftlets and even humans, that enter for short term shelter or for hibernation. Most of them contribute organic matter rather than consuming it, and are important resources for troglobitic insects, many of which actually specialise in ...
“An experimental study of modern human footprints in mud flats found that fine details were lost within 2 days and prints were rendered unrecognizable within four, and similar observations have ...
The man who pleaded guilty to kidnapping and sexually assaulting a Northern California woman in a case that became known nationwide as the "Gone Girl" kidnapping has now been charged with other ...
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In Pennsylvania caves were used by newcomers as homes for a long time, certainly half a century. They generally were formed by digging into the ground about four feet in depth on the banks or low cliffs near the river front. The walls were then built up of sods or earth laid on poles or brush; thus half only of the chamber was really under ground.