So, I was thinking... How To Teach A Rat Electronics, and came up with a basic experiment:
We give a male rat 3 things, 1 a tuned MW circuit to our AM transmitter 2 a Ge diode (OA79 comes to mind) 3 insert a crystal ear-piece in the rats ear.
Then we transmitter the sound of female rats. We once show (use sticky wires or something) the configuration of the 3 components where it hears our transmissions, Maybe enhance reward by allowing it to see female rat etc..
Time
And there you are, after X runs rat will figure how to connect the stuff.
Modern 'tronics is much like putting eesees together anyways,,,
In part 2 of the experiment we will let the rats use a tuning capacitor and transmit 2 signals...
If / when it all works we have cheap labor :-) US Precedent will love it, now he can compete with the rest of the world.
Rats!