Dogs seem to agree with humans that 'bouba' is round and 'kiki' is spiky
A recent study shows dogs can match the human perception of the sound‑shape association known as the Bouba–Kiki effect. Researchers presented dogs with audio cues linked to round or spiky shapes and found the animals preferred the round shape when hearing the ‘bouba’ sound and the spiky shape with the ‘kiki’ sound, mirroring human responses.