This is a punnet square. The big p stands for black eyes and the little p stands for red eyes. The top row of p’s are Cosmos’s genes and the side row is the dad’s genes. The right column in the square has two little p’s in each so those babies will definitely have red eyes because there is no gene there for black eyes. In the other column it has a big p and little p in both of the squares so there is a 50 50 chance for the babies eye color.