Davnes007 said:
ChainsawAsh said:
...how the hell did those whales breathe once they were beamed into the Klingon ship?

I'm sure there was a bit of an air-space above the water.

Whales can survive underwater for several hours without having to come up with air. But don't forget, it was a concern. Kirk's final battle at the end of this movie was rescuing the whales from the tank as the ship was sinking because, as Gillian said, "They'll drown." So, yeah, there you go. Everything makes sense.