Somebody needs to straighten out everyone who talks into a microphone for a living, and soon. Now, Thom and several others I've heard have not made this mistake, but I have no other outlet for my complaint: That city in Colombia is Cartagena, not Cartageña. Likewise with habanero peppers; they're from Havana, not Havaña, so they're not habañeros.

There is a terrible ignorance that makes some people believe every n in Spanish has a tilde on it.

Hamlet, III, ii, 229-30:

Hamlet:
Madam, how like you this play?
Queen:
The lady doth protest too much, methinks.

Many years ago, Discover magazine had an article about a gene (called Eyeless) that would, when scientists turned it off, make a fruit fly develop with no eyes, not even a hint that eyes belonged on their heads. (There's also a gene called Headless, discovered in mice, which when turned off keeps the entire head from developing.)

The eyeless gene is probably the same in shrimp as in fruit flies, since they are both arthropods. (Whereas Headless would be different in arthropods, since vertebrates and arthropods evolved the head at opposite ends of the alimentary canal, i.e. mouth and anus are switched, and the canal pumps in the other direction.)