Chimpanzees consistently choose crystals over ordinary rocks, suggesting a curiosity that may echo early humans.

Aden Kahr Humans have long been fascinated by crystals. Archaeological evidence suggests our ancestors have treasured small quartz and calcite stones for at least 780,000 years, often bringing them ...

Humans don’t just recognize each other’s voices—our brains also light up for the calls of chimpanzees, hinting at ancient communication roots shared with our closest primate relatives. Researchers ...

Scientists in Spain investigated which characteristics of crystals may have made them so fascinating to our ancestors.