Below you can find the Greenland right whales have the longest of these thin plates of any whale; they may reach 13 feet Jeopardy Words Answer. The answer to Greenland right whales have the longest of these thin plates of any whale; they may reach 13 feet has 6 letters. This clue belongs to the Arctic animals category and is part of Jeopardy Word Level 1156. If you scroll near the bottom you will find other clues and answers part of level 1156