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(a) With few ticks, moose retain a brown coat; (b) at high numbers of ticks, moose self-groom, destr
Distribution of glaciers in North America (a) in the late twentieth century, and (b) 18,000 years ag
Glioma. (a) Illustration of a large glioma (colored area) within the left cerebral hemisphere in a s
The declining age of menarche over the past 150 years has been measured in many European countries,
A typical camshaft-driven high-pressure pump used to increase fuel pressure to 2,000 PSI or higher.
Prevalence of good health in Canadians aged 65 years and older