I have already reviewed a few questions about the feasibility of a radio communicating creature. Like these:
- How would organic EM transmitters/recievers be different than our mechanical ones
- Anatomically correct radio communication
They live on an Earth-like planet and they are carbon-based.
Besides their standard circulatory system, they have a secondary circulatory conduit of ferromagnetic fluid.
To communicate, they use their muscles along that conduit to move a bulge of ferromagnetic fluid in circles (as shown in the second picture). The creatures can move the fluid at will, altering the speed and rotation pattern as they wish.
And they receive the electromagnetic signals through a circular nervous system with a high concentration of iron to make it more sensible to the electromagnetic signals. (third image).
the question is: Is this specific way of radiocommunication possible?