How Long Have Bears Been on Earth?
Bears have been on earth for over one million years. Polar Bears deviated from warm weather bears around one million years ago.
Well it depends on what you mean. The distance for how long it takes, or the time as in how long since Earth was made. Earth as you know has been here a long long time. Stars light has been shinning towards Earth eversince it was made. To see how long it takes for a stars light to reach Earth depends on how distant and huge the star is.