Endnotes and Digressions:

1. Grey-tones for this installment by Chad Essley.

2. Would you like to know more about the "Penguinarium"? Visit the Oregon Zoo's Web site at www.OregonZoo.org/Exhibits/penguin.htm.

3. This comic has online bonus features! I actually conducted a longish interview with Senior Penguin Keeper Shawn St. Michael. Basically, I asked every stupid question that a person ignorant of penguins or zookeeping (i.e., me) might ask, and Shawn offered gloriously detailed, funny and well-spoken answers.

Want to learn a lot more about how Mochica decided to hang with humans? Want to learn about the growing science of helping these animals thrive in captivity? Want to learn how a penguin -- a surprisingly nasty-tempered bird -- can royally mess you up? You can find these answers (and see photos of Mochica) right here.