Photos That Will Make You See The World Differently - The Curious Human

This Is What The Inside Of A Bowling Ball Looks Like
They may know that an animal is about to appear due to the rustling, but for all they know the animal may appear spontaneously out of nowhere, with the rustling being some sort of precursor. All they will know is that the sound of rustling and the appearance of an animal are sequential - they won't necessarily understand why.