Chimps' love for crystals could help us understand our own ancestors' fascination with these stones 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 ancestors did not use them as weapons, tools, or even jewelry. So why did they collect them at all? #crystals #chimpanzees #humanancestors https://phys.org/news/2026-02-chimps-crystals-ancestors-fascination-stones.html