The 2 bulls in the red bull logo do not have wings and they are actually probably a gaur from Thailand where the drink was discovered by it's founder. he named it Krating Daeng which in Thai is red bovine or the guar. The logo is 2 bulls about to collide in front of a rising or setting sun. I believe this is an ancient symbol relating to the sun god Horus. there are many logos that use the Sun. A picture that relates to the Red Bull logo is the U2 Album cover "the greatest of 1990-2000" if you look at it from my perspective the suns horizon is also in the background except you are more zoomed in.
Because red bull GIVES you wings.
The motto of Red Bull GmbH is 'No Red Bull. No Wings.'.
You can view the Red Bull Logo on the website - Energy drink (dot) Red Bull. At Wikipedia - Red Bull you can see the famous Red Bull Logo with two bulls butting heads also.
Red dog
Red Bull
Zynga
red bull energy drink
Red dog
The red bull company does
red bull
Mcdonalds & red bull Xpedx's logo is another example. Look at BP's logo.
Merrill Lynch
Lambourghini