Yes, it is important for us all to bear in mind that the AI does not “learn” in the same ways that humans learn. And therefore taking photos that would help humans to understand the difference between two species does not necessarily help the AI discriminate them.
And of course it is important to remember that the AI is not “learning” to discriminate species, as we humans would, but to discriminate photos. I notice, for example, that it is heavily influenced in its matching by backgrounds such as stone walls, water surfaces, and sand.