A paper crab is one of the simplest things to fold.
Glimpse of the Result:
Start with a square sheet of paper folded in half vertically.
Fold it again in half, making a horizontal crease.
Lift the top layer and flatten as shown.
Flip and repeat the previous step for the other side.
Lift each side of the top layer and fold it diagonally along the sides.
Make a fold at the top.
Lift the two sides of the top layer and fold each side upwards. Flatten.
Rotate the whole model such that the triangle pointing downwards, points up. (180 deg.)
Fold the triangle pointing inwards.
You can draw eyes for your crab if you’d like.