Complex sentence: Re-creation mounts are accurate life-size representations of either extant or extinct species that are created using materials not found on the animal being rendered, they utilize the fur, feathers, and skin of another species of animal.
Split into simpler sentences: Re-creation mounts are accurate life-size representations of either extant or extinct species that are created using materials not found on the animal being rendered. They utilize the fur, feathers, and skin of another species of animal.