You definitely don’t even need to include sex or race as an input for the AI to show bias. AI can find other things that tend to show sex or race… perhaps your school, perhaps your address, or perhaps the very style you tend to write in for your cover letter.
The thumbnail made me see the man first, and it was interesting how the dog emerged in my vision— first as a man wearing a jacket with a dogface on the back, and then suddenly the entire man transforming into a dog facing the other way like an animorph.
If I’d seen the enlarged image first, or if I’d seen it on a monitor instead of a phone screen, probably would have seen the dog first and struggled to see the man.