Directions (use same directions as for dolphin):
1a. Print and cut out origami and dorsal fin.
1b. Snip end of tale, as illustrated, to red dot.
2a. Turn origami over. With printed side down, fold along A as illustrated.
2b. Repeat fold along B.
2c. Fold along C.
2d. Fold along D.
3a. Fold in half, diagonally along F, as illustrated.
3b. Your origami should look like this, with a "tail" flap and a "head" flap.
4a. Unfold "tail" flap. Take note of the diagonal line, highlighted here in red, on the dolphin/whale's flipper.
4b. Folding "tail" flap first, crease dolphin's flipper along the highlighted line as you fold "head" flap over.
4c. Your origami should now look like this, with the flipper folded as shown.
5a. "Valley" fold origami tip inward along E as illustrated.
5b. Fold dorsal fin in half, along solid line, as illustrated.
6. Fold tail fluke down. Tape/glue dorsal fin into place. Your marine mammal is done!