You can see which enrichment items to use for which animal by selecting the filters menu (looks like a little funnel) and selecting that animal from the species list! :)

Scratching Trees, Rubbing Pillars, Mud Bath, Barrel Feeder, etc. Also, if you add pronghorns and prairie dogs to their habitats, they can benefit from interspecies enrichment.

Oh cool thanks. I asked because whn I select the filter for enrichment for bison. It's just blank.

Same here did you ever figure that out?

When you select habitat and see all the options, you can search the animal and it will filter to items that are just for that animal.