Quote Originally Posted by Morphie View Post
To me it doesn't seem that strange. The brain surely formed before the divergence of arthropoda and animalia (or their predecessors), and it doesn't seem surprising that one of the most important neurotransmitters known was part of that system so long ago when the brain was new technology.

As long as serotonin does its job effectively and the brain is a sensitive organ that does not easily tolerate changes to its machinery, the underlying mechanisms by which it works should remain unchanged... indefinitely.

right? **boggles**
No, I'm hip to that.

The weird thing is looking at that six legged creature, antenna wiggling, abdomen throbbing, multifaceted eyes, tarsic toes and all that makes a bug (I know they're not true bugs) a bug and then looking at us, two legged though four limbed, two eyed, non-antennaed, abdomen lacking (in the sence of three distinct body segments aligned as a locust's are) and I am just amazed that our brains function similarly to any outside influence.

It's pretty neat when you stop and think about it but doggone weird too.