ANIMALS - Sometimes less is more for hungry dogs

Hungry dogs would be expected to choose alternatives leading to more food rather than less food. But just as with humans and monkeys, they sometimes show a 'less is more' effect. Thus conclude scientists who tested the principle by feeding baby carrots and string cheese to 10 dogs of various breeds ...

http://www.sciencedaily.com/releases/2014/03/140319153156.ht