Serendip is an independent site partnering with faculty at multiple colleges and universities around the world. Happy exploring!

Reply to comment

Penn Tong's picture

Brainless

I had the exact same thought about the leech's NS Nelly. I thought that the reason for the "twitching" of the NS was because that was the natural state of its NS and that it needed some sort of inhibitor/regulator (ie the brain) to control these spasms. I mean it is very possible. Look at people who have epilepsy. They have these uncontrollable spasms. Although it's not the same because in this situation we have our brain connected to our NS, we still consider this as a brain disease. So there must be something going on up there (or lack of).

Reply

To prevent automated spam submissions leave this field empty.
6 + 7 =
Solve this simple math problem and enter the result. E.g. for 1+3, enter 4.