Sockeye salmon that sprint to spawning grounds through fast-moving waters may be at risk, suggests new research by University of British Columbia scientists. When salmon encounter turbulent, fast-moving water–such as rapids or areas downstream of dams—they must move upstream using a behaviour known as “burst swimming” that is similar to sprinting for humans. “Days after […]
Rochester, MN, August 12, 2014 – There is strong epidemiological evidence of the importance of regular physical activity, such as brisk walking and jogging, in the management and rehabilitation of cardiovascular disease and in lowering the risk of death from other diseases such as hypertension, stroke, and type 2 diabetes. The Physical Activity Guidelines for […]
DURHAM, N.C. — Modern humans appear in the fossil record about 200,000 years ago, but it was only about 50,000 years ago that making art and advanced tools became widespread. A new study appearing Aug. 1 in the journal Current Anthropology finds that human skulls changed in ways that indicate a lowering of testosterone levels at around […]
A new study led by an Adelaide scientist has revealed how massive, meat-eating, ground-dwelling dinosaurs − the theropods − evolved into agile flyers: they just kept shrinking and shrinking, for over 50 million years. Today, in the prestigious journal Science, the researchers present a detailed family tree of these dinosaurs and their bird descendants which maps […]