"Moo" is a very important language.
"Sir! I think it’s trying to communicate!" Siler drew their attention back to the figure, which indeed looked as if someone, in a moment of sheer inspiration, had taken a blue marker and drawn a rather cheerful stick horse on the closed iris. Above the creature’s head, something that looked suspiciously like a blue outlined conversation bubble had appeared, and letters were starting to form on the milky white surface in the center.
The General frowned at the new development. "What’s it saying?" he asked.
"Looks like ‘Moo!’" said Colonel O’Neill, leaning forward and squinting through the thick glass that shielded the control room.
from Stargate SG-1: Moo X-treme by iamdragonrider