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glacial periods
(Encyclopedia) glacial periods, times during which large portions of the earth's surface were covered with thick glacial ice sheets. In the Pleistocene epoch, in the Carboniferous and Permian periods…epoch
(Encyclopedia) epoch, unit of geologic time that is a subdivision of a period. The Pleistocene and Holocene epochs, for example, are divisions of the Quaternary period. Epoch is also used to describe…Quaternary period
(Encyclopedia) Quaternary periodQuaternary periodkwətûrˈnərē [key], younger of the two geologic periods of the Cenozoic era of geologic time (see Geologic Timescale, tablegeologic timescale, table)…estuary
(Encyclopedia) estuaryestuaryĕsˈch&oobreve;ĕrˌē [key], partially enclosed coastal body of water, having an open connection with the ocean, where freshwater from inland is mixed with saltwater…Oldest Human Remains in North America Found
In 1959, the partial skeletal remains of an ancient woman estimated to be 10,000 years old were unearthed in Arlington Springs on Santa Rosa Island, one of the eight Channel Islands off the…Uyuni, Salar de
(Encyclopedia) Uyuni, Salar deUyuni, Salar desälärˈ dā &oomacr;y&oomacr;ˈnē [key], salt flats (c.4,250 sq mi/11,000 sq km), Potosí dept., SW Bolivia, in the altiplano. The Río Grande de Lípez…The Turkey Vulture
A scavenger with an excellent sense of smell by Catherine McNiff AP Photo, Elliott Minor Related Links Turkey Vulture Video Turkey Vulture Video Quiz…Holocene epoch
(Encyclopedia) Holocene epochHolocene epochhŏlˈəsēn [key] or Recent epoch, most recent of all subdivisions of geologic time, ranging from the present back to the time (c.11,000 years ago) of almost…Americas, antiquity and prehistory of the
(Encyclopedia) Americas, antiquity and prehistory of the, study of the origins of the aboriginal peoples of the Americas. Archaeologists believe humans had entered and occupied much of the Americas…The Bulldog Ant
An Australian hunter with excellent vision and a venomous sting by Catherine McNiff By Doug Beckers (Flickr) Related Links Bulldog Ant Video Bulldog…Trending
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