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Some male birds and mammals congregate in communal courting grounds called leks.
Reindeer antlers grow again each year under a layer of fur called velvet. This reindeer is losing th
Charles Darwin may be dead and gone but a recent write-in campaign has pitted him against Republican
Critical thinking and the evaluation process
In 1839 Mary Cragin, at the age of twenty-nine, became a convert to John Humphrey Noyes’s “communism
The injector on-time is called the pulse width.