The condition known as hypertrophic cardiomyopathy, or HCM, is inherited and can be a killer. But some of the genetic mutations once thought linked to the illness are actually harmless, geneticists say.
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Genetically modified mosquitoes are released in Piracicaba, Brazil, in an effort to combat Zika virus. These mosquitoes were modified using conventional techniques.
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Rough night? Depending on specific tweaks to their genes, some fruit flies have trouble falling asleep, and others can't stay asleep. Getting too little shut-eye hurts their memory.
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The area around the confluence of the Silverthrone and Klinaklini glaciers in southwestern British Columbia provides a glimpse into how the terrain traveled by Native Americans in Pleistocene times may have appeared.
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This clay facial reconstruction of Kennewick Man, who died about 8,500 years ago in what's now southeast Washington, was based on forensic scientists' study of the morphological features of his skull.
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