The easiest way to solve this picture puzzle is to count the larger otters first and then search for the smaller ones hiding beside, behind, or inside their families.
There are seven clearly visible larger otters.
Next, look carefully for six smaller otters: one beside the left otter, one held by the centre otter, one behind the pair on the rock, one beside the right otter, one inside the curled otter, and one resting on the otter at the bottom.
7 larger otters + 6 smaller otters = 13.
The correct answer is 13 otters.
