Re: Question for neuro "boffins"
Because you need a wee bit more to "sing" than simply emit a (serial) pitched noise, and there's quite a bit of overlap in various modes of pitch/sound forming, all using roughly the same area of the motor cortex, which incidentally also handles other functions in the same "geographical" area of musculature.
If you're so smart, *you* try and pinpoint the handful of neurons responsible for [behaviour X] without the use of a lot of fancy technology, and without going through several years' worth of mice allowance in a month.
*If* you can get the permits necessary for in-vivo invasive animal experiments using your doubtlessly superior methods of experimentation..
The "C" in AC is strong in you though.