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Two new techniques to preserve and transplant ovaries might give women a better chance to fight their biological clocks and have children when they are older, doctors announced Monday. In the past, scientists have performed ovarian transplants in women with cancer, since chemotherapy often causes infertility. Doctors typically take out …

In soft sandstone on a New Zealand beach lie a series of very heavy footprints — the first evidence of dinosaur activity on the island. The prints were probably made by large, plant-eating sauropods between 6 and 18 feet long, creatures that would have weighed several tons. The discovery was …

The idea that one can be a conscientious objector, even in an all volunteer army, is something which should make Americans proud. The fact that the United States military doesn’t simply tell Pfc. Naser Abdo that he is stuck because he signed a contract demonstrates respect for precisely the kind …