Electrical and chemical stuff.
Music ‘My Own Flag’ by Less Than Jake
That title should be self explanatory…
You know, without a brain you would have trouble behaving and all of that.
Music ‘Re Your Brains’ by Jonathan Coulton.
Some event at time 1 affects behaviour at time 2.
Music ‘Down to Sound’ by Red Arms
How did we, meaning every living thing, get here?
Music ‘Today’ by Dan Brodbeck and Corey Thompson