https://www.theguardian.com/environment/2014/jun/08/the-dolphin-who-loved-me
https://sotalia.com.br/index.php/inicio/14-portugues/educativo/fique-por-dentro/66-caracterizacao-geral-dos-cetaceos#:~:text=Os%20cet%C3%A1ceos%20s%C3%A3o%20mam%C3%ADferos%20exclusivamente,propulsiona%20estes%20animais%20na%20%C3%A1gua.
https://www.youtube.com/watch?v=31AWe-FN7CA
https://pt.wikipedia.org/wiki/Gregory_Bateson