Word: bones
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...more mature cells and not a single sperm. The key challenge is to undo the development of an adult cell--which, like all cells, contains in its DNA the genetic blueprint of the entire organism--that has been programmed or "differentiated" to be one kind of cell (skin or bone or nerve) and no other kind. Somehow, scientists must trick this mature, fully developed cell into resetting its genetic clock so that it can begin life anew as an embryo...
...really young kid. He was starting to pass out, but he still displayed the smooth forehead and expressionless eyes of the silent treatment that apprehended perpetrators can give. His right foot was mangled-bits of sneaker mixed in with clotted blood, bone, cartilage and tendon. His left leg was hanging by skin. The jagged stump of his tibia stuck out just below the knee-pretty much what you would expect from the wheel of a subway train. Even in Harlem, this was pretty...
...happily worn-out 5-year-old is a highly desirable commodity in leisure travel these days, as indoor-water-park hotels, once unique to Wisconsin as an escape from the bone-chilling winters, spring up by the dozens across the U.S. "There's a real thirst for a family activity that's close to home, that's more than a trip to the movie theater," says PriceWaterhouseCoopers analyst Scott Berman. By adding indoor water parks to existing hotels or building new "destination" water-park resorts, hotel owners are attracting those families and in the process recharging business...
...toothed piranhas. Each time the men were forced to portage their massive dugouts or hack a campsite out of the thick vegetation on the riverbanks, they were attacked by stinging, biting, disease-carrying insects. Nearly all the men, including Kermit and Roosevelt, fell prey to the suffocating fevers and bone-grinding chills of malaria. The jungle was also home to poisonous snakes. One night a coral snake slithered from under a fallen tree and sank its fangs into Roosevelt's foot. But for his thick leather boots, he would have died an agonizing death...
...Bones of Contention Confusion surrounds the subject of osteoporosis. That is especially troubling for women, who face the risk of bone loss decades earlier than...