25 Life Changing Medicines That Have Changed The World

Note: If you’re not sure what your Rh factor is, you can know by your blood type. For instance, if you’re O-negative or O-positive, that “negative” or “positive” is referring to your Rh factor. Don’t know your blood type and expecting? No need to worry; your doctor will test your Rh factor as part of the routine blood work. Photos: 25. ANKAWÜ via wikimedia commons, 24. Tim.Reckmann via wikimedia commons, 21.

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25 Most Bizarre Spiders

Many are just down-right bizarre. Evolution has had a large part to play in how these creatures have developed. To survive, they’ve created some unique and weird techniques, including camouflage and efficient hunting abilities. Curious to find out what is out there? Here are 25 Most Bizarre Spiders.

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25 Most Influential People In History By Attribute

Pantheon, a project developed by the Macro Connections group at the MIT University Media Lab collected and analyzed data on historical and cultural popularity and tried to give answers to these questions. A multi-ethnic team of decorated designers, engineers, and scientists working collaboratively to quantify, analyze and measure global culture delivered the most academic and enduring list of the most popular and influential human beings in history. Since the top 100 is heavily dominated by philosophers, military personnel, politicians, scientists, and religious figures, we decided to deliver a roster of the 25 Most Influential People In History By Attribute and Profession.

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