SPERM WHALE
(1) The length is from 15meters to 18meters (male)
(2) The waight is about 45tons (male)
(3) They can dive into the deep sea more than 2500meters and can stay deep sea about from 40minuts with about only 10 minutes breathing time on the surface.
(4) They cannot see anything in the dark and deep sea so that they make certain sound called "click sound" for "echo soundding tool"so as to find fool or obstract during they act in the dark sea.
(5) They pray on squid or octopas.
(6) It is not yet known that why the only mals sperm whale migrate to the Nemuro Strat at this time of the yea.

Sperm Whale is the largest whale among the " TOOTHED WHALE "and the other words the largest toothed animal on the earth. As useal the sperm whale that migrate here also have many scars on their bodies presumably fought against the giant squid.