Ọ bụ ezie na ụbụrụ buru ibu na-ejikọta ya na ọgụgụ isi dị elu, ọ bụghị naanị ihe kpatara ya. Elephant na dolphins nwekwara ụbụrụ buru ibu karịa ụmụ mmadụ. sperm whale nwere encephalization quotient dị ala karịa ọtụtụ ụdị whale na dolphin ndị ọzọ, dị ala karịa nke apes anthropoid na-abụghị mmadụ, ma dị ala karịa ụmụ mmadụ. The sperm whale's cerebrum is the largest in all mammals, both in absolute and relative terms. The olfactory system is reduced, suggesting that the sperm whale has a poor sense of smell and taste. By contrast, the auditory system is enlarged. The pyramid is developed poorly, reflecting the reduction of the volume of the brain tract. Ajụjụ bụ: Gịnị bụ ụbụrụ nke sperm whale?
8,000 cm3