Pits and seeps full of tar and asphalt offer new insights into old ecosystems and cultures.

This nineteenth-century industrial product became a military staple and a critical part of local food culture around the world.

Professional applauders, collectively known as the “claque,” helped mold the tastes of an uncertain audience.

A rainforest evangelist hopes that Brazil’s 55-million year old jungle can survive 21st century human impact.