세상에서 뇌가 가장 큰 동물은 무엇인가?
The sperm whale uses echolocation and vocalization as loud as 230 decibels (re 1 µPa at 1 m) underwater. It has the largest brain on Earth, more than five times heavier than a human's. Sperm whales can live for more than 60 years.
sperm whale