While that's kinda cool in its own right, the fact that it's the oldest arthropod brain ever found, and also believed to be the earliest example of a "modern" brain yet, pushes it up the significance ladder somewhat.

ENGADGET: Alt-week 10.13.12: is the Universe a simulation, cloning dinosaurs and singing mice

Jeanne Zeh and her colleagues, who published their results in the current edition of Proceedings of the National Academy of Science, have shown that in a type of arthropod known as a pseudoscorpion, polyandrous females do, indeed, produce more offspring as a direct result of their promiscuity.

ECONOMIST: Polyandry