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newswatch.nationalgeographic.com
Zebra stripes evolved to keep pesky insects at bay, according to the most thorough study to date on the subject. All three species of zebra have bold stripes in comparison to other African grazers like water buffalo and antelope. This so-called stripe riddle has puzzled scientists—including Darwin—for over a century, leading to five main hypotheses: that the stripes repel insects, provide camoufl
blog.nationalgeographic.org
In French Revolution-style, researchers decapitated flatworms—then did something that would give even Madam Defarge the creeps. The scientists let the worms’ heads grow back and found that their memories returned along with the new noggins, according to a new study in the Journal of Experimental Biology. Researchers decapitated a flatworm (left), and then allowed its head to regrow (far right). Ph
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