This expansive forest stretches across several South American countries, breathing life into the very atmosphere we depend on ...

At dusk, a swarm of bats disperses to hunt in the rainforest surrounding Deer Cave. One of the planet’s largest underground passages, it holds more than two million bats. This story appears in ...

In the rainforest of Costa Rica, a soil-dwelling fish with skin-covered eyes maneuvered through the mud. Its small size and underground lifestyle likely helped it go unnoticed — until now.