Photos taken at unfamiliar angles will present their objects in ways we're not used to seeing. Which makes them less familiar and more stimulating. Which is more interesting.
High, low, inside a pipe, from a tree, under water, where people don't usually go / aren't allowed / can't access, etc.
Keep in mind that the unusual can become commonplace if overused. Selfie sticks were initially a novel PoV. They became cliche in about a week.
heard zuckerberg booked him as wedding photographer (for real)
Secondly, if you open up the depth of field with a very deep scene, you create more possibilities for composition, framing or storytelling. Again, all you have at human eye level is chicken/grass. At chicken eye level, with a very deep focal range, you might also be able to tell the story of the chicken in 'the great outdoors', you may see mountains and forests on the horizon etc.
Hope that helps.
This one for instance has near direct look into the camera, and there's no way you'd get that from human waist or eye level https://chicken.photos/20220611121718