Pet Business is a free theme for WordPress created by themepalace.
Pet Business is a WordPress pet theme developed by Theme Palace. It is very code-light, making it quick to load, and has a pleasingly clean look that is ideal for pet shop or pet services websites. This theme is suitable for pet shops, veterinary practices, zoos, blogs about animals, pet caretakers, dog walkers, animal breeders, animal rescue centers and just about any other type of animal website you can think of. It comes with many editing options so that you can customize them to your specific requirements by changing colors, logos, backgrounds and of course adding photos of your favorite animals.
(Description "Pet Business" Theme from wordpress.org)
You can download Pet Business for free via the provided download link and include it into your themes folder of your WordPress installation. Also you can directly search for it in the WordPress admin interface in the themes section and install and activate it from there.
More information, screenshots and reviews of Pet Business Theme can be found here.