It’s been a while since there have been any mollusk mathematics around these parts, and the New York Times treated us to some the other day. There’s also some fun word play in there too, including that I forgot that in some cases you can also plurlalize -us words with -era, like genera and opera!
The new thing I learned from reading this article, apart from the fact that probability is not my mathematical forte, is that all octopuses (and cuttlefish) are poisonous. I just spoiled you on the answer to one of the questions, but how cool, and that result is fairly recent news. It’s still true that only the blue ringed octopus is a danger to humans– from poison anyway–wrestle an octopus at your own risk!
(This is a print by Utagawa Kuniyoshi from c. 1839. See many more at The Kuniyoshi Project!)