Blindsight is the remarkable ability of some blind people to sense objects that they cannot actually see.
Let’s consider the eye, which is but one of many subsystems (along with the brain, heart, liver, lungs, etc.) in higher animals that coordinate their tasks to keep an organism alive.
For English anatomist Alice Roberts, however, the human body is a “hodge-podge” of parts assembled in an “untidy” fashion “with no foresight” by evolution.
Vertebrate eyes work reasonably well, Richard Dawkins conceded, but “it is the principle of the thing that would offend any tidy-minded engineer!”
Scientists were dumbfounded to find shellfish looking at them with hundreds of elegantly designed eyes.