A cat may plop itself right in the middle of the page you're reading, but will never want to tell you a long...loooong story about standing in the long...loooong line at the DMV when you're trying to read the last few pages of the book you have to return to the library the next day. A dog may occasionally chew up your copy of Pete the Cat and his Four Groovy Buttons (thinking he is protecting you from imminent feline peril), but a dog will never chew your ear off about the neighbor kids and their newfangled hippity-hop music when all you want to do is disappear into the pages of the romance novel for which you patiently waited in the holds queue. In short, when it comes to companionship for readers, generally speaking, the four-legged variety is not only preferable but easier to train.
If you have been thinking about adopting a pet, our friends at Harris County Public Health and Environmental Services (HCPHES) have animals from kittens and puppies to older dogs and cats who are desperate to find forever homes. Visit HCPHES's website for more information and to see pictures of adorable adoptables.
Of course, Harris County Public Library has oodles of books and other resources to help you over the bumps that come with bringing a new four-legged member into your home from pet nutrition to training.