Researchers dropped a mantis shrimp into a tank with two burrows to hide in: one reflecting unpolarised
light and the other, circular polarised light.
Nato has struggled to come to grips with a Europe unpolarised
and undivided between East and West, Communist Bloc nations and those free to vote and choose their method and parties of government.
The longest such words reported by Keith have 11 letters: ASPERGILLUM, PATRONYMICS, and UNPOLARISED