How Many Pets I Have . Dogs were by far the most common pet, with 63.4 million homes owning a dog, followed closely by cats with 42.7 million homes. But eventually i would discover a new pet, and the process would repeat. Love Puppies? Then Here’s Why You Shouldn’t Buy Them MTV from www.mtv.com Sadly, just 21 percent of dogs and 21. 12 poultry (duck, geese, peacock, pheasant, turkey or female chicken) an owner or occupier of land greater than 4,000 square metres but less than 20,000 square metres can keep up to five dogs and/or five cats without a permit. The evolution of a pet used to affect stats, but in a recent update, pets are now all equal in stat growth, so evolution only affects appearance (except for.