This week's Raised Eyebrow Award goes to the editors of the brand new issue of PLoS Biology. One of the very interesting new articles in this release is, "Morphological evolution is accelerated among island mammals" (my emphasis) by Virginie Millien, who works at McGill, one of my old stomping grounds.
To illustrate this article on the table of contents, the editors put a very nice picture of a tortoise.
There's just one little problem.
Tortoises are not mammals.
And if that wasn't puzzling enough, try making sense of this sign.