Blood pressure that remains elevated over of time — known as chronic hypertension — has been linked to heart disease, which is the leading cause of death in the United States.
articles
America’s First National Wildlife Refuge
A bird-loving farmer living near Florida’s Pelican Island helped spur the creation of a national system of wildlife refuges.
Mysterious Magnetic Fossils Offer Past Climate Clues
Magnetofossils can tell us a lot about the conditions of the ocean during rapid warming of the past.
Gold Mining in Russia’s Central Aldan Ore District
In places where concentrations of the precious metal have been discovered, mining operations are large enough to be seen from space.
Controls Needed to Stop Zebra Mussels Invading Great Britain
New research by Swansea University scientists found that boat ramps facilitate the dispersal of the highly invasive zebra mussel (Dreissena polymorpha).
Arctic Shrubs Add New Piece to Ecological Puzzle
Implications for carbon exchange in a warming, drying tundra.