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Australian Girl Has Super Blood
- Transplant patients usually take anti-rejection drugs to stop their bodies from killing the new organ. Watch this Reuters video to see how Demi-Lee Brennan's "super blood" actually changed type, from O- to O+, to match her newly transplanted liver.
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Understanding the Brain: Development
(0:57)
A baby's environment plays just as large a role in its development as its genes. Watch a video brought to you by the Discovery Channel.
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What Are the Odds? Snakes
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What are the odds you will survive a snakebite? Learn more about odds in this video.
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Brains That Love to Gamble
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Watch this video about brains that love to gamble on HowStuffWorks. Researchers have found the parts of the brain respond specifically to gambling. Learn how scientists can predict gambling behavior in this video from ScienCentral.
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Arm Reattached After Croc Chomp
(1:00)
Watch this video about a crocodile attack on HowStuffWorks. The 200 kg male Nile crocodile severed a veterinarian's forearm at the Shaoshan Zoo in the southern Chinese city when he tried to retrieve a tranquilizer dart from the reptile's hide so he... More »
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Fat Hungry Brains
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Watch this video about our fat hungry brains on HowStuffWorks. Researchers have discovered that our brains can trick our bodies into ignoring the fullness hormone, Leptin. Learn why our brains are so hungry for a fatty diet in this video from... More »
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Growing Bones with Nanotubes
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Watch this video about growing bones on HowStuffWorks. Researchers are developing a way of regaining bone strength using carbon nanotubes, a newly created and very strong compound. Learn about growing bones with nanotubes in this video from... More »
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Heart Attack Repair
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Watch this video about repairing damaged heart tissue on HowStuffWorks. Researchers at Johns Hopkins University have found that stem cells from bone marrow that can help repair tissue after a heart attack. See how heart attack repair works in this... More »
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How Your Brain Can Control Pain
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Watch this video about the brain's ability to control pain on HowStuffWorks. If one concentrates on pain, the perception of that pain will increase. If one distracts thoughts away from the pain, the perception of the pain lessens. Learn about this... More »
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