“This ability to distinguish biological movement appears to be highly conserved in the animal kingdom, having been demonstrated in species of mammals, birds, fish, and spiders. In fact, it might even be innate in some species. In one study, newborn chicks were placed on a runway with a video projected on either side, each depicting points of light with biological or nonbiological movement, similar to the ones in Blake’s experiment (see figure 10). The chicks showed a clear preference for the biological movement, even when it corresponded to a cat’s and not a chicken’s. What’s most interesting about this is that the chicks had been bred in the dark, and had not had any visual experience until that moment, which is evidence that this preference in them is innate and not learned. And, once again, it doesn’t manifest when the image is inverted and therefore doesn’t follow the law of gravity.”