Every single one of your ancestors over the past 3.5 billion years fought, struggled, endured, triumphed and survived long enough to create, against all the odds, a single unbroken chain from the origin of life to you. (source)
Every single one of your ancestors over the past 3.5 billion years fought, struggled, endured, triumphed and survived long enough to create, against all the odds, a single unbroken chain from the origin of life to you. (source)