Complex sentence: The shape and size of sectorial teeth of different carnivorous animals vary depending on diet, illustrated by the comparions of bear ("Ursus ") carnassials with those of a leopard ("Panthera").
Split into simpler sentences: The shape and size of sectorial teeth of different carnivorous animals vary depending on diet. This can be illustrated by comparing the carnassials of a bear ("Ursus ") with those of a leopard ("Panthera").