Primates of all stripes really love their crystals. Archeologists have found the shiny rocks at dig sites dating back as long as 780,000 years ago. Although, we are still not sure if our ancestors ...

Aden Kahr Humans have long been fascinated by crystals. Archaeological evidence suggests our ancestors have treasured small ...

Crystals have repeatedly been found at archaeological sites alongside Homo remains. Evidence shows that hominins have been collecting these stones for as long as 780,000 years. Yet, we know that our ...

The study suggests that both humans and chimpanzees possess a “shared cognitive predisposition” for crystals. Whenever such a trait emerges as common between two related species, it’s likely that this ...

Chimpanzees can pick out crystals from a pile of ordinary rocks, handle them with visible care, and even hold them up to peer through like tiny windows, according to a peer-reviewed study that tested ...

They gave quartz, calcite and other types of crystals to chimpanzees in a rehabilitation center. The apes responded with great interest, and the researchers ended up needing to trade large amounts of ...

In experiment 1, the crystal was placed on a pedestal which had been installed months prior to the experiments, so it did not constitute a novelty for the chimpanzees.