The Vsual Communications of Animals
By: Gabriel Marfileno

Aggresive
Many dogs and wolves places their tails between there legs and lay on their backs to show submition and to show they pose no threat to any other dog or wolf. But when a they want to show dominance, they stare at eat other and expose their teeth, showing aggresion.
http://www.nhptv.org/natureworks/nwep3a.htm
http://i374.photobucket.com/albums/oo184/mastiffsj80/bilde.jpg

Not the BEES!
They use the "Round Dance" or the Wiggle Dance". The Round Dance is used to show how the food smells, and as for the Wiggle Dance, it is used to show where the food is at shown from the sun.
http://en.wikipedia.org/wiki/Waggle_dance
http://en.wikipedia.org/wiki/Round_dance_%28honey_bee%29
http://www.bearcountrybees.com/education/bee-basics/types-of-bees/worker-bee/

Deep Sea Creatures
Man sea creatures that we know of today have many reasons to shine light. For some examples is for one to warn others off, to use as camouflage, or to lure food near to eat.
http://www.seasky.org/deep-sea/bioluminescence.html
Deep sea anglerfish (Monterey Bay Aquarium, E. Widder/ORCA).

Black Bird
In the case of the blackbirds, the males puff up their feathers, lean forward, shrug their shoulders showing off their colorful shoulders, and exaggerates them with bold postures.

I'm not Lion!
Male Lions use their manes to establish dominance in a Pride. They use this as a visual cue.
http://animaldiversity.org/accounts/Panthera_leo/
http://www.krugerpark.co.za/images/thumbs/lukimbi-lodge-lion-pride-480_200x135.jpg - Direct link to the image