National Geographic : 2014 Mar
18 140 142 4 6 8 10 16 Editor’s Note Letters Survival Guide VISIONS NG Connect The Moment Found On the Cover In this illustration, as in space itself, a black hole is revealed by the power of its pull on nearby stars and other celestial matter. Art by Mark A. Garlick Your Shot DIgItal EDItIONS March 2014 NEXt Contributions to the National Geographic Society are tax deductible under Section 501(c)(3) of the U.S. tax code. Copyright © 2014 National Geographic Society All rights reserved. National Geographic and Yellow Border: Registered Trademarks ® Marcas Registradas. National Geographic assumes no responsibility for unsolicited materials. Printed in U.S.A. Subscriptions For subscriptions, gift memberships, or changes of address, contact Customer Service at ngmservice.com or call 1-800 -nGS-lIne (647-5463). Outside the u.S. and Canada please call +1-813-979-6845. Please recycle. PRiNTed oN 100% PeFC-CeRTiFied PAPeR Bat Echo Video Bats fly in for a floral treat. Bluefin Tuna Animation Explore the traits that make the tuna a super fish. Black Holes Animation Black holes can’t be seen. Watch how they’re found. National Geographic is available on the iPad, the Kindle Fire, and the iPhone. Wiring the World There are 340 trillion trillion trillion new IP addresses to bring more folks online. On Thin Backyard Ice A project asks people to report if their home rink is melting. Flying Up From Rio Brazilians flock to the u.S. to shop. Stick a Needle in It most u.S. kids get necessary vaccina- tions. Yet many adults are unprotected. Spit and Potatoes These are two of the unlikely tools used in art restoration. Freezing Fukushima An ice wall might contain the Japanese power plant’s radioactive leaks.