A dog catching a Frisbee.
A puppy has leapt into the air to grab a Frisbee.
Not every dog is a puppy. The sight of puppy leapt into the air to catch Frisbee is a rare sight.
A dog may be older and no longer a puppy. It's possible for a dog to catch a Frisbee while standing, without having leapt into the air.
A dog is catching a  Frisbee does but the puppy is leaping to catch the Frisbee.