In Survive: Escape from Atlantis, are the whales and sharks left out of the map during setup? Do they only appear when flipping "play immediately" whale or shark tile?
Yes, those creatures only appear when you flip a tile with the aforementioned creature. This is different than the Sea Monsters, that begin on the board at the start of the game.
The nearly complete rules, which a BGG commentor stated have not changed says: