Like many fish and amphibians, the Guiana dolphin can sense low levels of electrical activity in the water—an ability not previously reported in true mammals.
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People living in near the Earth’s poles, where days are often short and light often low, have larger eyes and visual cortices than those closer to the equator.
Unlike human brains, chimpanzee brains don’t get smaller as they age, suggesting that pronounced neurological decline is a uniquely human byproduct of our oversized brains and extreme longevity.
Non-African people carry remnants of the Neanderthal X chromosome, suggesting interbreeding with early human ancestors.
The US government created a sham vaccination campaign to get DNA from the world’s top terrorist, threatening legitimate vaccination programs in the developing world.
Gene expression analysis allows researchers to predict which patients will respond to flu vaccines and possibly expedite vaccine development.
South Korea approves the first stem-cell medication for clinical use.
Using synchrotron rapid scanning X-ray fluorescence to map the distribution of trace metals in avian fossils over 120 million-year-old, researchers reconstruct the pigment patterns of their feathers—revealing some of the extinct birds' long-lost colo
The story of the US government’s efforts to stamp out smallpox in the early 20th century offers insights into the science and practice of mass vaccination.
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