Here are a couple of slideshows that I use with my Physical Characteristics of Animals unit. They are super simple--meant to show kids the variety of animals in the world. I show these slideshows to the kids AFTER they have explored and come up with a list of characteristics on their own--kind of a wrap up.
The slideshows are Google Presentations--you just have to click on the links to view.
Pictures of animals with fur, feathers, scales, shells and skin.
Pictures of animals in all different colors.