Many spider species will eat their own webs as a way to recoup the proteins used in the silk and cut down on the new resources required to spin the next web.

ZIP codes, or Zone Improvement Plan codes, were introduced to the U.S. mail system in 1963 and were expanded to the ZIP+4 system in 1983.

The kind of amnesia portrayed in films like 50 First Dates is called anterograde amnesia, where the patient is unable to form new memories after the date of the event that caused the condition.