They do, however, swell up a bit
when the owner has the horn. Hurrah for the horn!

Unfortunately also at other times so it's not a reliable indicator of moistness, but never mind.
( Fronds are waving gently on, Thu 6 May 2010, 21:28, 1 reply)

That's probably what he'd heard somewhere at about 13 and misunderstood.
He truly believed that the growth was incremental though.
(Juan Quar is clinging to her front teeth on, Thu 6 May 2010, 22:48, closed)