The parties often refer to the result of the negotiation as a collective bargaining agreement (CBA) or as a collective employment agreement (CEA).
When theyâre happy and satisfied they make a humming sound. This sounds like a blend of buzzing and humming. When in danger alpacas will sound an alarm which sounds a little like a horseâs whinny. And, as you now know, before mating alpaca stallions âorgleâ.
The idea of a yummy hum -- a low-frequency sound that lets sharks know their order's up -- is based on the fact that sharks pick up on plenty of infrasonic noises (ones too low for us to hear) and use them to their advantage. It's possible because lots of oceanic sounds operate at this level.