Can you identify the structure in the photo below (2 pts), what it is doing (2 pts), and the organism to which it belongs (order, family, genus, and species—2 pts each)? Comments will be held in moderation so everybody has a chance to participate, although there are early-bird bonus points on offer. Read the full rules for details on how (and how not) to earn points. Good luck!

Copyright © Ted C. MacRae 2013