Spanish researchers conducted a series of experiments at a sanctuary near Madrid: presenting crystals to chimpanzees. The ...

Chimpanzee experiments suggest early humans were likely fascinated by crystals because of their unique transparency and ...

Chimps’ love for crystals could help explain our ancestors’ fascination with the shiny stones. The forerunners of modern humans collected crystals for which they had no apparent use, say scientists.

Observing how chimps interact with crystals may help us understand why our ancestors started collecting them thousands of years ago and why we still do today. Crystal shops popping up on every corner ...

The researchers were hoping to understand whether our own species' long documented appreciation (bordering on obsession) with ...