Aside from humans, no other animal that has been studied, not even monkeys or apes, has proved to use such hemispheric specialisation for sound processing meaning that the left brain is better at processing fast sounds, and the right processing slow ones.

The study opens a pathway to studying bat brains in order to understand certain human language disorders and potentially even improving computer speech recognition, researchers said.

"Bats need to use the fast timing of the left hemisphere to distinguish communication sounds from each other, because their communication sounds have rapid changes in frequency. Otherwise, they cannot communicate with other bats, and bats are even more social than humans.

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