Chimpanzee Rips Up Floor, Drums Like a Musician

Ayumu the chimpanzee didn't just discover drumming. He invented his own instrument.

The 26-year-old male chimp at Kyoto University has been spontaneously ripping floorboards from his walkway and fashioning them into drums. Over two years, researchers recorded 89 performances where Ayumu drummed, dragged objects, and threw them in sequences lasting several minutes while he vocalized and appeared to laugh.

"I was surprised," primatologist Yuko Hattori told Mongabay. Chimpanzees have been observed hitting tree trunks or throwing stones, but using a stick like a drumstick had never been documented before.

The performances weren't random noise. When Hattori's team analyzed the order of Ayumu's actions, they found repeating patterns that mirror how wild chimps communicate through pant-hoot vocalizations, building from soft sounds to a screaming climax.

Ayumu's drumming showed the same progression. He moved from slower, louder drumming to dragging sounds, then finished with a dramatic throwing gesture.

The rhythm itself was remarkably steady, like a metronome. The team found that drumming with tools produced more stable beats than drumming with hands or feet, exactly what human studies have shown about drumsticks versus bare fingers.

What struck researchers most was Ayumu's play face and apparent laughter during performances. The behavior seemed emotionally rewarding for him, not just a social display meant for others in his group.

The act of prying loose floorboards qualifies as "detachment," a hallmark of early tool-making. Ayumu wasn't just using what he found; he was creating his instruments.

Why This Inspires

This single chimp's creative drumming supports a fascinating theory about human music. Scientists have long wondered whether instrumental music evolved from vocal emotional expression, the idea that feelings once conveyed only through voice gradually became externalized through tools and objects.

"As far as I know, non-human animals are not known to use tools to express emotion in this way," Hattori said. Ayumu may be demonstrating that chimpanzees share our ability to channel emotional states through something beyond their own bodies.

The study has important limitations. Ayumu is the only chimp in his group performing this behavior, and his history with cognitive experiments and electronic keyboards may have primed him for rhythmic thinking. Captivity gives him safety and free time that wild chimps rarely enjoy.

Still, wild chimpanzees drum on tree buttress roots to communicate across distances greater than a kilometer. A 2025 study found these performances are rhythmic and vary by subspecies, with western chimps using evenly spaced beats while eastern chimps alternate between intervals.

Hattori's team plans to study how other chimps respond to Ayumu's performances. Early observations suggest some group members sway their bodies in reaction, hinting at a shared experience that looks remarkably like appreciation.

One chimp with floorboards and time just opened a window into how our ancestors may have discovered the joy of making music.