I used some of mine for school projects.
Zoo photos I usually just post to this site, if they are any good.
Wildlife photos go to iNaturalist or eBird/Macaulay Library (and sometimes both).
You should, it's a great site. In many ways it is superior to eBird, mostly because it is more of a community of naturalists rather than a citizen science project (though it really is both).I do pretty much the same thing, although I've never uploaded to iNaturalist.