On October 13, 2015, twin giant panda cubs were born at the Toronto Zoo. At one month old, they are healthy and continue to grow. The larger of the two cubs now weighs over one kilogram, with the smaller cub not far behind at approximately 750 grams. The undercoat (or insulating hair) continues to grow in thicker and whiter, making the areas on their bodies where the skin is not pigmented black, look much whiter. They truly look like giant pandas now.