Question

Which animal has the biggest brain?

Answer 1

Answer:

Sperm Whale

The largest mammalian brain belongs to the sperm whale, one of the biggest cetaceans in the sea. The sperm whale's head comprises 25 to 35 percent of its entire body length. The mature adult sperm whale's brain weighs an average of 18 pounds, and can grow to be nearly 500 cubic inches in size. For comparison, the human brain is only about 80 cubic inches. Compared to the exceptional size of the sperm whale, however, the brain itself is not that large: the brain mass is only .02 percent of the total body mass.