What is the most important scientific question of our time? [more inside]
posted by Demogorgon on Oct 12, 2009 - 44 answers

I’m trying to remember the name of a set of themed encyclopedias for children from my childhood. [more inside]
posted by studentbaker on Mar 9, 2009 - 11 answers

What experiments have been carried out where animals perform better than us at particular cognitive tasks? [more inside]
posted by 0bvious on May 9, 2006 - 13 answers

Are there any animals that have evolved a use for radioactivity? If so, what ways is it used? If not, why has this not happened? [more inside]
posted by 0bvious on Nov 23, 2005 - 32 answers