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The wandering spider boasts one of the world's most sensitive vibration detectors: It can pick up the slightest rustling of a leaf from several meters away. Now, scientists have developed similar sensors that can detect simple human speech. The technology could lead to wearable electronics for speech recognition, health monitoring, and more.

epa side on global climate change

Scientists once shied away from naming research animals, and many of the millions of mice and rats used in U.S. research today go nameless, except for special individuals. But a look at ​many facilities suggests that most of the ​other ​891,161 ​U.S. ​research animals ​have proper names​, including nonhuman primates, dogs, pigs, rabbits, cats, and sheep​.

Why elephants aren't riddled with tumors poses a weighty problem for researchers. A new study shows that the animals harbor dozens of extra copies of one of the most powerful cancer-preventing genes. These bonus genes might enable elephants to weed out potentially cancerous cells before they can grow into tumors.

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