This week's penguin: Sometimes you can tell from the hat, though.

Actual penguin fact: you can't tell the gender of a penguin (for sure) by looking.[1] You have to do a DNA test.



[1]at least, for African penguins and their close cousins, Magellanic and Humboldt. Not sure about the others and too lazy to do the research right now :-)

Posted via web from Jen's posterous