According to the Star Trek: The Next Generation Technical Manual (1991), “guidance and navigation research is conducted by twelve Bottlenose Dolphins (Tursiops truncatus) and Pacific Bottlenose Dolphins (Tursiops truncatus gilli), who are supervised by two Takaya’s Whales.” (2/4)— Aaron J. Waltke (@GoodAaron) May 2, 2020
From the wiki:
Doctor Joshua Kim was ordered to report to this facility, shortly after the Enterprise-D encountered a temporal rift. (TNG: "Yesterday's Enterprise")
The term "Cetacean Ops" was only heard in the "background chatter" during the episode. The facility might also exist in the regular timeline as dolphins are mentioned to be aboard the ship in "The Perfect Mate". To date, the facility has never been shown on screen.
And the mirror verse version:
I now want to see a 'mirror universe' episode penned where the tanks have sharks in them... awaiting crew who displease the captain...— Albert Fanshawe (@Allyfan) May 2, 2020
Here's another weird Star Trek gem, the episode that featured a giant clone of Spock:
Listen.— Jeffrey Bridges (@JeffreyBridges) April 4, 2020
Listen to me.
Star Trek: The Animated Series is the gift that keeps on giving.
Did you know there is a (literal) giant Spock clone walking around? He’s like six stories tall. They just left him on a planet out there.
Happy it’s in my life now.
And so’s Lucifer! pic.twitter.com/R116qlH30J
Happy birthday to intergalactic Tsunkatse star @TheRock!#StarTrek pic.twitter.com/qy02dhmv8E— TrekCore.com 🖖 (@TrekCore) May 2, 2020