Add Yahoo as a preferred source to see more of our stories on Google. A mother chimpanzee carrying her twins on her back. A similar disorganized attachment can occur in captive chimpanzees, ...

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 ...

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

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

Humans are not the only species to combine concepts to build more complex meaning, a new study found. Bonobo chimpanzees combine calls in a manner similar to how humans structure words to make phrases ...

Human brains do something peculiar when a chimpanzee screams or hoots. Instead of treating those sounds as generic animal noise, a small region in the auditory cortex lights up in a way that looks ...

Scientists analyzed the urine of wild chimpanzees who'd feasted on fallen fruit to see how much alcohol they consumed from the fermented sugars.

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

Bonobos for years have had the reputation of being the cool hippies of the simian world, with a "make love, not war" ethos, ...

A groundbreaking ten-year study on the behavior of chimpanzees, reported in the journal Current Biology, reveals that humanity's closest living relative expresses a propensity for human-like warfare.