This is an assignment i have to research for my son and i have no idea about it..
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The sperm whale is the animal with the heaviest brain... but you should make your son do his own homework -dont tell him the answer until he tries to find it himself too.
It is more than 20 pounds/9 kg
It is more than 20 pounds/9 kg
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The Sperm Whale has the largest and heaviest brain of any creature on Earth.
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I would assume it is the Blue Whale, as it is the largest creature on earth.
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no?