(Encyclopedia) Slave, river, c.310 mi (500 km) long, Northwest Territories, Canada. It comprises the middle sections of the Mackenzie River system. The river channels the waters of Lake Athabasca and…
(Encyclopedia) TetonTetontētŏnˈ [key]. 1 River, 143 mi (230 km) long, rising in several branches in the Rocky Mts., NW Mont., and flowing E to the Marias River. Bynum Reservoir, on a tributary, is a…
(Encyclopedia) Block, Adriaen, fl. 1610–24, Dutch navigator. Eager to establish a fur trade with the Native Americans, Amsterdam merchants sent (1613) Block and another Dutch navigator to explore the…
After There was 'Lucy'New 2.5 million-year-old ancestor found in Ethiopia by Otto Johnson 2.5 million-year-old fossils Earlier this year, a team of Ethiopian, American, and Japanese researchers…
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