Starting in 1996, Alexa Internet has been donating their crawl data to the Internet Archive. Flowing in every day, these data are added to the Wayback Machine after an embargo period.
How Cloning Works - Scientists have successfully cloned several animals. But this success has sparked fierce debates about the use and morality of cloning. Find out about cloning and discover some possible uses of this technology.
How Gene Pools Work - The physical you is a result of your DNA, and your DNA is part of the human gene pool. Find out what the "gene pool" really is and what happens when it shrinks.
How Evolution Works - There are a number of competing theories regarding the origins of life. It's a subject of some very heated debate. Check out the theory of evolution and some of the arguments against it.
