Complex sentence: Also, as indicated by the study of Helen Newing, there is a correlation between body size and diet; larger animals have more robust digestive systems, stronger jaws, and wider necks that allow them to consume lower quality foods, larger fruits and seeds.
Split into simpler sentences: Also, as indicated by the study of Helen Newing, there is a correlation between body size and diet. Larger animals have more robust digestive systems, stronger jaws, and wider necks that allow them to consume lower quality foods, larger fruits and seeds.