We all mark days with clocks and calendars, but perhaps no timepiece is more immediate than a mirror.

A new model has been created that can forecast the location of Eastern Pacific leatherback turtles along the coast of Central and South America in an effort to decrease bycatch mortality of this critically endangered and ecologically important species.

For the entire history of our species, humans have lived on a planet capped by a chunk of ice at each pole.

Over the last 540 million years, the Earth has weathered three major ice ages — periods during which global temperatures plummeted, producing extensive ice sheets and glaciers that have stretched beyond the polar caps.

Access to clean water remains one of the biggest challenges facing humankind. 

An international team of researchers has analyzed the use by sea otters of large, shoreline rocks as “anvils” to break open shells, as well as the resulting shell middens. 

Human social life would be unthinkable without cooperation. 

Researchers have examined a method to extract rare-earth elements from mining waste that could provide the world with a reliable supply of the valuable materials.

As high-tide flooding worsened in Norfolk, Virginia in recent years, Margaret Mulholland, a biological oceanographer at Old Dominion University, started to think about the debris she saw in the waters that flowed back into Chesapeake Bay. 

Every year, 1.4 billion mobile phones are produced around the world.