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(a) Mean duration (days) and (b) average maximum depth (mm) of snow cover throughout northern latitu
Longer regions have more crossovers and thus higher recombinant frequencies
Adapoids and omomyoids had longer snouts and are the first “true” primates.
In 2008, the U.S. economy suffered a gaping wound as several trillion dollars were ripped out of it.
People are living longer today than in previous decades
Systemic and Pulmonary Circulations