Turns out that dragonfly nymphs and sea cucumbers also find their oxygen through their butts. Per the website, The Straight Dope, (http://bit.ly/o9SB8V), “Many species have a pair of sacs (bursae) opening off the cloaca (combined digestive and urogenital chamber).” I have no idea what that means. All I care about is that the butt is a viable alternative to the brain. I think I have been a trendsetter.
I must have been a sea squirt in another lifetime. There have been times, as a working mom, stepmom and wife that I wanted to eat my brain. Actually, I felt as if I had eaten my brain. Now, I know that I am not alone. If you check out Goodheart’s Extreme Science site (http://bit.ly/rqSngv), the sea squirt “eats its own brain,” such as it is. But since the sea squirt no longer needs its brain to help it swim around or to see, this isn’t a great loss to the creature.” I was ahead of my time.