Are you aware how broad a term "animals" is? The term includes hawks, ants, turtles, snakes, trout, leeches, sharks, jellyfish, lions, coral, alligators and many more. It includes all vertebrates, but it is not limited to vertebrates. The diversity of eating habits in animals defies easy generalizations. Maybe jellyfish do skip breakfast, but that does not tell you whether humans should skip breakfast.