The rodent whisker system is a widely used model to study the sense of touch. Its neuroanatomy parallels that of the human, but its mechanics are vastly simplified compared to that of the human tactile system. Just like other modalities with complex sensor accessory structures, the geometry, mechanics, and material...
Most organisms use rhythms of sunlight to synchronize their activity to the environment. These rhythms of activity are called circadian rhythms. The rhythms persist with near 24 hour periods when external synchronizing cues are absent. In mammals, the circadian clock is generated at the molecular level by a transcriptional/translational feedback...