Magana: Kwakwalwar ita ce mafi girma da aka sani na kowane dabba na zamani ko kuma wanda ya mutu, yana da nauyin kimanin kilo 7.8, fiye da sau biyar fiye da na mutum, kuma yana da girman kimanin 8,000 cm3. Ko da yake kwakwalwar da ta fi girma ta haɗu da hankali mafi girma, ba shine kawai factor ba. Elephants da dolphins kuma suna da kwakwalwa mafi girma fiye da mutane. Whale na whale yana da ƙananan ƙwaƙwalwar ƙwaƙwalwar ƙwaƙwalwa fiye da sauran nau'in whale da dolphin, ƙananan fiye da na non-human anthropoid apes, kuma mafi ƙasƙanci fiye da mutane. Ƙwaƙwalwar whale na whale shine mafi girma a cikin dukkan dabbobi masu shayarwa, duka a cikin cikakke da kuma dangi. Tsarin ƙanshi yana raguwa, yana nuna cewa sperm whale yana da ƙanshi mai ƙanshi da dandano. A akasin haka, tsarin sauraro yana fadada.
8,000 cm3