Their perception bends the limits of biology.
Snakes from pit vipers to some pythons navigate darkness using a sensory system that barely seems possible. Instead of relying on light, they read heat signatures in the environment as if each warm object leaves a glowing trail. Scientists studying their anatomy in the last decade discovered that this ability depends on finely tuned facial structures and neural circuits working together in a surprisingly elegant way. The result is a form of perception that operates outside human experience.
