Imagine if each of your fingers let you taste what you touch. Imagine waving your hand to locate the source of an odor. The stem of an insect antenna may contain Johnston’s organ which may have hundreds of sensory nerves to detect gravity, air movement, air pressure, acoustic vibrations, angular changes in flight, and electric field changes. Imagine if your Martian feelers were as sensitive as the antennae of a mosquito—you could smell another creature a hundred feet away.