What does the recently unveiled Amazon Go store have to do with several new studies detailing how flies find water or how tiny roundworms can "taste light?" The "world's most advanced shopping technology" that links the cutting-edge Amazon Go store to its customers depends on the same vital element linking roundworms and spiders to their environments: a sensor.

A new bioengineered medical device was designed to treat people with a severe loss of neurologic muscle control. It affords a rare opportunity to clearly see some of the hidden relationships between mind, body, and designed interfaces.