Dr. Justine Lee kicks off her course by discussing the most popular pets: cats and dogs. You will gain helpful insights such as what sort of time and financial investments you will need to make, a typical lifespan, and what sort of environment you should provide for the most common pet breeds. Arming you with the basics of what to expect when you get a cat or dog (or both) allows you to make an educated decision about whether pet ownership—and what kind of pet—is right for you.