NewScientist has published the following report on cuttlefish communication:

Mathematics reveals the cuttlefish's wink (http://www.newscientist.com/news/news.jsp?id=ns99993728)

This is pertinent to a recent discussion we've been having in the following thread in the Jounals and Photos forum:

How does your bimac say hello? (http://www.tonmo.com/phpBB/viewtopic.php?t=588)