It is not clear if motion sickness is genetic and [[evolutionist]]s cannot explain its evolutionary advantage. Scientific tests are inconclusive whether animals without ears, such as fish and amphibians, suffer from motion sickness, despite being very sensitive to motion. | It is not clear if motion sickness is genetic and [[evolutionist]]s cannot explain its evolutionary advantage. Scientific tests are inconclusive whether animals without ears, such as fish and amphibians, suffer from motion sickness, despite being very sensitive to motion. |