Word: embryos
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...discovery announced in the current Science suggests that the carnivores had a nesting instinct as well. Working with a U.S.-Mongolian team in the remote Gobi Desert, paleontologist Mark Norell of New York City's American Museum of Natural History found the nearly complete skeleton of a predatory-dinosaur embryo, the first ever discovered, fossilized just as it was about to hatch during the Cretaceous period, more than 70 million years ago. The embryo and its potato-size egg, found in a rocky nest along with at least eight other eggs, are from a kind of oviraptor, an ostrich-size...
...federal advisory panel called on the National Institutes of Health to lift its 15-year ban on embryo research -- a suggestion that's sure to anger the religious right. The panel stated that embryos "do not have the same moral status as infants and children," and that scientists should be allowed to conduct federally funded experiments on them -- albeit with strict controls. One of these, the panel recommends, is to limit research to embryos that are no older than 14 days, the time when a fetus begins to develop a nervous system. The NIH is expected to make a final...
...story was full of pungent quotes like "There wasn't going to be any safe place in the world," and "Karl, you'd better come quick to the lab. Fred has harvested some cells, and they've got worms." It read like a ready- made movie in pleasing embryo form...
Sensitive to ethical concerns, the NIH advisory panel intends to recommend strict limits on embryo studies. In most cases, for example, the embryos would not be allowed to develop for more than 14 days, which is the standard in countries that allow such research. Under no circumstance would experiments on embryos be allowed after the 20th day, when the tube of cells that is destined to become the brain and spine closes...
Most likely, the first people to benefit from embryo research would be the millions of couples (including an estimated 5 million in the U.S. alone) who have trouble conceiving. Much of the information in textbooks on developmental biology comes from research conducted between the turn of the century and the late 1940s. "It's a static picture, and some of it is wrong," says Dr. John Gearhart of the Johns Hopkins Medical Center. "Now we know what the questions are, and we have the tools we need to make the most of the small amount of material we could...