Puppies need exercise, but too much can cause exhaustion or even joint damage, especially in bigger dogs. As a puppy grows, the amount of daily exercise should increase by 5 minutes per month. For example, 3-month-old puppies should have at least 15 minutes of exercise each day, increasing to 20 minutes at 4 months. These beautiful, two-month-old golden retriever pups enjoy playing on the back lawn of Orvis headquarters in Sunderland, Vermont. 🎥: Joel Ruby Studios | Orvis