God, I could type in this thread all day. I'll type a few with one hand while I eat lunch:
+Starfish have no brains
+Every nation in Europe sent some number of troops to fight at the Battle of White Mountain
+Caucasian Ovcharkas were bred by the Russians 700 years ago to kill bears. (The modern-day russian army uses them as guard dogs)
+HIV steals part of the cellular plasma membrane by embedding its own viral glycosylated proteins during tranlation and fusing with them during exocytosis.
+The patella is grown inside your tendons - this is called a Sesamoid bone.