マッコウクジラが強すぎる理由がこちら【解説】

https://upload.wikimedia.org/wikipedia/commons/f/f3/Dirk_Claesen_-_Sperm_Whale.jpg Julian Ilcheff Borissoff, CC BY-SA 3.0 https://creativecommons.org/licenses/by-sa/3.0, via Wikimedia Commons https://upload.wikimedia.org/wikipedia/commons/e/e4/Architeuthis_dux_specimen_F_74346_%28suckers%29.jpg Museums Victoria, CC BY 4.0 https://creativecommons.org/licenses/by/4.0, via Wikimedia Commons https://upload.wikimedia.org/wikipedia/commons/1/1b/Essex_photo_03_b.jpg en:Thomas Nickerson https://upload.wikimedia.org/wikipedia/commons/5/55/Physeter_macrocephalus_skeleton_%283%29.jpg Ryan Somma, CC BY-SA 2.0 https://creativecommons.org/licenses/by-sa/2.0, via Wikimedia Commons https://upload.wikimedia.org/wikipedia/commons/3/32/Architeuthis_dux_specimen_F_88555.jpg Museums Victoria, CC BY 4.0 https://creativecommons.org/licenses/by/4.0, via Wikimedia Commons The Sound of Sperm Whales | WHALEZONE.TV © WHALEZONE.TV 2020 https://youtu.be/HS9OIBifQVw licensed under Creative Commons: By Attribution 4.0 https://creativecommons.org/licenses/by/4.0/

http://www.nicovideo.jp/watch/sm44612340