ISBN: | 978-5-5121-8437-0 |
High Quality Content by WIKIPEDIA articles! USS Unicorn (SS-436), a World War II Tench-class submarine, was the second submarine of the United States Navy to be given that name for the narwhal, an Arctic marine cetacean with a single tusk suggesting the horn of a unicorn and sometimes called the "sea unicorn." Like the first USS Unicorn (SS-429), she was not completed.