IG's have not lost their hunting instinct. They will chase anything that moves, including cars. Be very careful with your puppy and even grown dog anywhere there is traffic. An IG can dart out into the road, even pulling the leash out of your hand, to chase the cat or squirrel it has seen on the other side of the street. IG's usually grow until they are between six and eight months of age.
Nutritional requirements remain high.
Sine the IG is a very short-coated canine, it does react negatively to extremely cold temperatures and rain. They do not seem to mind cavorting in snow as much as they dislike rain in their faces. Brief periods of exercise are enjoyed even in ad weather. While in the house on cool, nasty days, your IG will want to snuggle under the covers on the bed or the family room sofa. On the whole, the breed would much rather be in your lap or bed, than on the floor.