No idea if said it here sometime, but Marcos is well know for his big appetite, depite he have his characteristic skinny body XD And his long body for a fox just makes it more evident!
That´s why because yes, he can do amazing dodging moves and jumps for few time as you know, but obviosully that requires lot of energy. Normal people can´t jump almost 3 mts UP as nothing, for put a sample

And as the red fox said, Kurt is a very good cook!! Learnt good tricks from his oldest Brother Caesar, that works as cook. Make tasty bread is extremly simply for the german shepherd, but here is the trick: Marcos dosn´t like sweet food. Very rarely he eats it. But Kurt´s breads was made SPECIALLY for Marcos so have the exact point of sweet that he likes. As the red fox doesn´t like the hot weather, or the sand, but he goes to the beach very oftten with the Klendathus and Breihzlander just to enjoy more time with his friends, Kurt rewards the red fox with "food from heavens" as Marcos calls it XD And Kurt feels so happy watching how Marcos loves it, SO both ends very happy x3