Located on the surface of the cell, they receive messages or signals from the environment or field and communicate that information to the cell which in turn, triggers a corresponding response within the cell.
Readers, please enjoy this guest blog post by Rick de Yampert, author of the new Crows and Ravens.
I was gobsmacked the time I looked out my living room window at the woods behind my Palm Coast, Florida, home and saw a crow hanging upside-down in...