I am a cow, but I'm not white or black.
I have 2 legs in front but no legs in back.
Look at my back end, you'll see it is round.
For long periods of time I can stay off the ground.
What am I?
(In reply to
re: could it be.... by Talon5000)
Flying is not a problem as a manatee when swimming would be "off the ground" but the back end of a manatee is not round unless you count that the letter "e" is roundish...