A Two-knee fish!.....
Birds of prey !
One fine morning in Eden, God was looking for Eve, but couldn't find them. God saw Adam and asked where Eve was? Adam replied, "She's down at the Ocean, taking a bath." "Damn," says God, "now all the fish will smell."
Nothing, it just waved.
For the Halibut.
Dam.
A two-knee fish! (works better when you're drunk)