Extreme heat causes cows to produce less milk. This poses problems in cheese-obsessed Italy, especially as it tries to meet ...

Deep beneath the forest, a team of explorers squeezed through a narrow stone crack barely wide enough to crawl through. What they found on the other side stopped them cold — a 100-foot vertical ...

While exploring a remote cliff face, a group of cavers discovered a small, almost invisible hole in the rock. When they squeezed through, they entered a massive borehole cave that plunged deep into ...