Plus, the best view of a comet in 50,000 years and when groundhogs get it wrong.
|  | Wednesday, February 1, 2023 | | | | |
 | PHOTOGRAPH BY NATASHA BREEN, REDA&CO/UNIVERSAL IMAGES GROUP/GETTY IMAGES
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What should you eat to live longer? Current nutrition offers one-size-fits-all advice, but a massive new study hopes to finally personalize our diets to reflect different genes, microbes, and lifestyles.
Also being studied: Sleep, stress, and the times of day people eat.
“Precision nutrition will allow us to do better,” one researcher tells us. So how would it work? And when could we take advantage of it?
Read the full story here.
Please consider getting our full digital report and magazine by subscribing here.
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 | | LEFT: PHOTOGRAPH BY SCIENCE PHOTO LIBRARY; RIGHT: MICROGRAPH BY POWER AND SYRED/SCIENCE PHOTO LIBRARY | | | Eating wisely: Different people do best with different diets, researchers say. At top, traditional nicoise salad with tuna fish, olives, and eggs. Above left, probiotic pills and yogurt. Above right, colored scanning electron micrograph of bacteria (colored) among the milk solids from a yogurt. Read more. | | | |
 | | PHOTOGRAPH BY GRAHAM DICKIE | | | |
 | PHOTOGRAPH BY DAVID CHANCELLOR, NAT GEO IMAGE COLLECTION
| | Finding a motive: The researchers looked at more than 10,000 elephant killings across 30 countries in Africa. Now their data proves a longtime theory: Poaching is driven by need rather than greed. “When we are looking to protect wildlife, we can't do that without thinking about the well-being of people,” Timothy Kuiper, a co-author of the study, tells us. (Pictured above, an African elephant grazes in a field in a reserve in Kenya.)
Related: This Nat Geo Explorer safeguards human health to protect the world's rarest primates
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 | | ILLUSTRATION BY ANDREW FAZEKAS | | Catch the Green Comet: Tonight this mountain of ice and dirt, hurtling through our inner solar system, is the closest to Earth it will be for 50,000 years. Comet ZTF has now become visible to the eye from dark locations, and is within easy reach with binoculars. Looking like a tiny cottonball, you'll find it within the triangle formation drawn out by the three stars: Capella, the North Star, and Dubhe (illustrated above). However with the glare of the moon, clearer views may come after February 7, when the moon leaves the evening skies behind. — Andrew Fazekas
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 | HISTORIA/SHUTTERSTOCK
| | | From slavery to fame: Their fledgling university was on the verge of financial ruin—so the choir set out to save it. The original nine Fisk Jubilee Singers (pictured above) toured the U.S. and the world, sharing Negro spirituals that made audiences weep and shamed racist hecklers into silence. Their legacy lives on at the school they saved. | | | |
Today’s soundtrack: Don’t Touch My Hair, Solange
This newsletter has been curated and edited by Jen Tse, Sydney Combs, and David Beard. Have an idea or a link? We'd love to hear from you at david.beard@natgeo.com. Thanks for reading! | | | |
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