There are a lot of great wildlife artists, like the one who paints animals that blend in perfectly with their surroundings -- of course I can't remember the artist's name ... duh!
Try Googling for Showcase or the Greenwich Workshop which used to have some nice catalogs including works by Scott Kennedy, Charles Wysocki, Rod Frederick, Bonnie Marris, and Simon Combes.
Another favorite is the painter of ocean scenes showing unlikely assemblies of impressive critters in stunning backlighting (sorry, can't remember his name either, but might be Wyland or in Wyland Galleries).
But lots of searching trying various key words (e.g., wildlife paintings)should get you into the areas you want.