Ah, Possible Creatures. How I missed ye, but not enough to bother with the optical media to reinstall the game.

I personally recall the Lobsting Whale, a sperm whale combined with a lobster. So you have the sonar attack, the pincers, and a very tanky unit. Problem is, you needed to go for the very tedious level V research.

So what are your favorite possible creatures? Do you have any strategies that synergize particularly awfully?

I always liked to combine a giraffe with a archerfish, who creates a amphibious long range artillery unit.

I got a sensible chuckle from that.

I haven't played far enough to get those yet but I presume it looked something like this.