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No, since a tan is the result of melanin in the skin exposed to ultraviolet rays.
There is a distinct difference. I believe I can fly, and birds just fly. :) Just kidding. People fly with 200 ton contraptions of metal and fire, while birds fly with 2 limbs of feather, skin, bone, and muscle. See the difference?
There are many differences, but one obvious difference is that eagles can fly, while ostriches can't fly at all.
Wings.
Cluster flies are slightly larger than the common house fly. The main difference is in the sucking parts used in the mouth.
one difference is that a penguin is a flightless bird and a puffin can fly.
Airplanes can not fly straight up and down or hover.
The difference is that a bee can sting but a dragonfly and a moth can't.
The adult mosquito can fly while the young of the mosquito cannot fly.
The difference between a Venus fly trap and Rafflesia plant is that the Rafflesia plant is bigger than the Venus fly trap plant. The Venus fly trap also doesn't stink. The rafflesia plant does!!!
eagle can fly hight than robin