This week's question: Scientists have discovered that plants emit high-pitched sounds, too high for humans to hear, when they lack water or have their stems cut. If a botanist were to write a book explaining why we all need to be kinder to our leafy friends, what should it be titled?
How to enter: Submissions should be emailed to firstname.lastname@example.org. Please include your name, address, and daytime telephone number for verification; this week, please type "Green scream" in the subject line. Entries are due by noon, Eastern Time, Tuesday, Jan. 7. Winners will appear on the Puzzle Page of the Jan. 17 issue and at theweek.com/puzzles on Jan. 10. In the case of identical or similar entries, the first one received gets credit. All entries become property of The Week.
The winner gets a one-year subscription to The Week.