Personally, I could have continued quite happily in my ignorance of the existence of Saltoblattella montistabularis, or the Leaproach as it’s more commonly (not to mention disconcertingly) known, a cockroach able to jump several times its own height. The crawling-on-the-ground species are quite creepy enough, one would have thought.
If you prefer a more science-fictiony flavor to your waking nightmares, look no further than Tyrannobdella rex, discovered in all its leechy glory up the nose of a little girl in Peru. It looks very much like a wrinkly fang-mouthed thumb; definitely not the kind of thing you’d want rootling around in your nasal passages.
Less unsettling are the ”eternal light mushrooms” from Brazil Who needs candlelit dinners with a few of these tossed into the salad?
And, sorry, but back to the horror stories, how about the Darwin’s bark spider that can spin a web across 25 m of water. Definitely wouldn’t want to be kayaking down this river in the dark – unless, of you course, you’d remembered to pack a sack of glow-in-the-dark mushrooms to light your way… 
