<span>The yellow packets of tissue under the skin of a chicken allow the chicken to insulate from temperatures when the chicken is alive. It acts as a barrier against the weather. When the chicken is prepared to be cooked these pockets of fat are often left to keep the meat from drying out while the chicken is being cooked.</span>
Nuclear fusion generates the energy that is released by stars. In the great majority of stars, it's the fusion of hydrogen nuclei to form helium nuclei plus energy. In very old stars, the nuclei of heavier elements are fused, forming even heavier ones.
