More: Marlee may be 10 but she has the energy of a 2 year old! She loves to run and catch the ball then speed past Riggs, tempting him to chase her. Marlee is the hunter in our pack and is by far the smartest and sharpest dog we have ever had….not much gets past her! A great day for these 2 wonderful dogs is full of walks, playing in the water and playing in the yard!