Human population footprint may be growing more slowly

The human footprint continues to expand, with three quarters of earth's land surface now experiencing measurable pressures from buildings, roads, crops, pastures and other human structures and activities, according to a ...

Time ticks away at wild bison genetic diversity

Evidence is mounting that wild North American bison are gradually shedding their genetic diversity across many of the isolated herds overseen by the U.S. government, weakening future resilience against disease and climate ...

How a researcher discovered a completely undocumented whale

One evening in November 2013, the noted whale researcher Salvatore Cerchio sat down to dinner with his team of scientists on Nosy Iranja, a small island known for its white sands and turquoise waters that's located off the ...

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