Natural navigation

While humans use mainly their vision, some animals rely on other senses to navigate. Sharks, for instance, generate and detect distortions in electric fields using electroreceptor organs. Turtles feel variations on Earth’s magnetic field, bats identify distances by the reflection of ultrasound waves on objects, and ants lay down trails of pheromones that serve as a guide to other ants – attracting others when returning to the nest with food or repelling them when the supply dwindle. And what if humans could be enhanced by such cool senses? Would their perception and ability to navigate change as well? (more…)



