Today, let's fold a three - dimensional Tyrannosaurus rex. The Tyrannosaurus rex is one of the largest carnivorous dinosaurs. Its forelimbs are very short, but its hindlimbs are extremely strong, and its tail is quite long. When folding the paper Tyrannosaurus rex, we should reflect these characteristics.

Step 1: Take a square piece of paper. Fold it along any diagonal and then unfold it to leave a diagonal crease on the paper. Place the paper face down with the crease in a vertical position.

Step 2: Fold the lower - left side and the lower - right side inwards respectively until their edges coincide with the crease.

Step 3: Fold the upper - right side inwards until its edge coincides with the crease. After creating the crease, unfold it.

Step 4: First, unfold the right - hand side fold made in Step 2. Then, fold it inwards along the upper - right crease made in Step 3, placing the "upper - right part" beneath the "lower - right part".

Step 5: After folding, it will look like what is shown in the figure.

Step 6: Fold the left side in the same way. Make the paper into a quadrilateral that is symmetrical on both sides.

Step 7: Fold the upper corner downwards. Then, fold the part that was folded down upwards in the opposite direction along the dotted line in the figure, resulting in the shape shown on the right side of the figure.

Step 8: Now, fold the lower part of the paper. First, fold the lower corner upwards, dividing the paper into an upper and a lower part. The lower part is relatively long and should completely cover the upper part (as shown in the middle figure). Then, fold the overlapped upper part back along the dotted line.

Step 9: Fold the part that was folded in the reverse direction back again in the reverse direction, aligning the lower edge (as indicated by the dotted line on the left figure). Then, fold it in the reverse direction one more time, aligning the upper edge of this part (as indicated by the dotted line on the right figure).

Step 10: Fold the paper in half horizontally (from left to right).

Step 11: Rotate the paper - folded work 90 degrees to the right. The right side represents the head of the Tyrannosaurus rex, and the left side represents its tail. Then fold the head part to the left to create a crease.

Step 12: Open the folded part of the head and shape it into a downward - facing quadrilateral, which will be the head of the Tyrannosaurus rex. Finally, fold the pointed part of the mouth slightly backwards.

Step 13: Since the body part was formed by folding the paper in half, the Tyrannosaurus rex's two feet can be spread apart to make it stand, creating a three - dimensional Tyrannosaurus rex that looks extremely imposing.