What's up with Marine Mammals in Splatoon?

now nobody can ever ask me 'what about marina's narwhal landlord?' ever again.
  / rassicas  

no im not a girl, please refer to me with they/them pronouns only thanks!
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SOURCES:
What Do Squid Kids Eat? - https://kotaku.com/do-squid-kids-eat-...
that one 2015 Famitsu interview I mentioned - https://docs.google.com/document/d/1y...
that one SRL Tumblr post I mentioned - https://splatoonus.tumblr.com/post/15...
that one 2018 Famitsu interview I mentioned (in Japanese) - https://www.famitsu.com/news/201803/0...
Splatune album info - https://splatoonwiki.org/wiki/Splatun...
whale fall stuff -   / 1021953513637666817  
http://www.jamstec.go.jp/sp2/research...