I would say animals in images is more akin to matching two different musical performances of the same song (where one of the two can even be the user humming),

I would say animals in images is more akin to matching two different musical performances of the same song (where one of the two can even be the user humming), which Shazam doesn't offer but some systems like Google Assistant do! Rather, matching two recordings of the exact same performance (one ingested by Shazam at training time and one ingested by Shazam at run time) is more akin to identifying individuals (facial recognition) than identifying species.