To restore damaged land, hoofs are now on the ground at a former Czech military base.

A hanging Alpine glacier keeps moving, threatening the valley below.

Scientists test new traps to control the invasive lionfish population.

“Mighty mice” stay muscle-bound in space and could hold promise for humans.

A major railroad expansion could destroy parts of the Kansas prairie ecosystem.

Scientists are working to decode the secrets of an ancient plant’s genetic makeup.

Andean condors can soar for hours without flapping their wings even once.

Conservation groups disagree with a North Cascades grizzly decision.

A Belgian baker collects and studies sourdough starters from around the world.

Scientists marvel at how tiny critters create undersea “snot palaces.”