Dogs seem to agree with humans that 'bouba' is round and 'kiki' is spiky

Researchers conducted a study on canine perception of the 'bouba/kiki effect', where humans typically associate 'bouba' with round shapes and 'kiki' with spiky shapes. The study involved 32 dogs and found that 82% of them agreed with human perceptions, with 19 dogs preferring 'bouba' for round shapes and 13 for spiky shapes. The study also found that the dogs were not influenced by the sound or visual appearance of the words 'bouba' and 'kiki'. The researchers suggest that this shared perception may be due to a common evolutionary ancestor or cultural learning.