Well, the test involved playing recordings of human voices, lions, hunting sounds, or control sounds at animals gathered at a watering hole and measured their responses.

What they found was that the animals ran from the human sounds much more than the lion sounds; and elephants and rhinos ran particularly fast: https://www.cell.com/current-biology/fulltext/S0960-9822(23)...

That said, elephants are smart, and have been known to seek out human camps for medical attention when injured: https://www.itv.com/news/2016-06-03/wounded-elephant-shot-by...