Also, for bacterium and such, wouldn't it make sense to make their common name a shortening of the scientific name, as opposed to being identical? For instance "E. Coli" on top, to make it easier on the young'uns.
Edit -- And for a third, final thing, flipping the middle and left cards on my 1280x1024 screen mucked up the site formatting. Using Firefox 3.6.3 with AdBlock, for the record. "flip card" changing to "unflip card" changed the length of the row of buttons so that it spilled onto two lines, which pushed the cards below it to the side, so that 3 rows of cards were formed. Just a little error there.