ZIP Codes are a system of postal codes used by the United States Postal Service (USPS) since 1963. The term ZIP, an acronym for Zone Improvement Plan, was chosen to suggest that the mail travels more efficiently, and therefore more quickly (zipping along), when senders use the code in the postal address. The basic format consists of five numerical digits. An extended ZIP+4 code, introduced in 1983, includes the five digits of the ZIP Code, a hyphen, and four additional digits that determine a more specific location within a given ZIP Code.
The Pink River Dolphins of the Amazon River in South America are  pink-colored because they have a lot of blood vessels near the  surface of their skin, so that they can betâ¦ter control their body  temperature.    The pink river dolphin of the Amazon River is rare.
According to The Hitchhikers Guide to the Galaxy, humans are the 3rd smartest animals and Dolphins are 1st. Which what is the 2nd smartest if we're 3rd? But heres my opinion, We're second and dolphins are 1st. Just because they dont have thumbs and cant communicate the same way as we do doesnt mean theyre not smarter.