There are passive NLOS imaging technologies based on shadows: https://arxiv.org/pdf/1807.02444.pdf https://arxiv.org/pdf/1807.02444.pdf https://www.quantamaga

There are passive NLOS imaging technologies based on shadows: https://arxiv.org/pdf/1807.02444.pdf https://arxiv.org/pdf/1807.02444.pdf https://www.quantamagazine.org/the-new-science-of-seeing-around-corners-20180830/ https://www.quantamagazine.org/the-new-science-of-seeing-aro... But animals can already "see" round corners using sound and smell. Dogs don't need any sort of line of sight to identify who's nearby and cats have night vision.