A confusion of cephalopods

Note: Cross posted from Quentin Hudspeth's Journal.

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Merriam Webster’s online dictionary recently started showing little vlogs about etymology and grammar called Ask the Editor. They are usually witty, and always informative. Here’s one of my favorites…

http://www.merriam-webster.com/video/0015-octopus.htm

(For some reason, they don’t allow embedding.)