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[159.127.163.23]) by mx.google.com with ESMTPS id 46e09a7af769-7249b4b6b87si523548a34.159.2025.01.16.11.29.50 for (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Thu, 16 Jan 2025 11:29:50 -0800 (PST) Received-SPF: pass (google.com: domain of bounce@email.nationalgeographic.com designates 159.127.163.23 as permitted sender) client-ip=159.127.163.23; Authentication-Results: mx.google.com; dkim=pass header.i=@email.nationalgeographic.com header.s=ep1 header.b=VSmOpi4A; spf=pass (google.com: domain of bounce@email.nationalgeographic.com designates 159.127.163.23 as permitted sender) smtp.mailfrom=bounce@email.nationalgeographic.com; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=nationalgeographic.com DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=email.nationalgeographic.com; s=ep1; t=1737055775; bh=80OHZR4fmwZlJ3bUpvjXdQ4u7PcviXgZt9ORNAk32oY=; h=List-Unsubscribe:List-Unsubscribe-Post:MIME-Version:Subject:From: To:Date:Content-Type; b=VSmOpi4A7RvuGGf9hBLPTQARPBlURUYOOmEvdCM5V8jEXeih0DV0uMwwuKFhGVZ+C DoxAA/P8HC/4tsH6ABdsXB3F4O+7X2ZIsRMpxXBm1XX1x5jhpGXHZGPW73i0d6qF2Q FyPIW5IFot66gWeDJlnfkT78xjizZ1+RNuaAgCxs= Received: from [10.233.18.115] ([10.233.18.115:35672]) by pc1udsmtn2n15 (envelope-from ) (ecelerity 3.6.9.48312 r(Core:3.6.9.0)) with ECSTREAM id 53/77-33627-F1E59876; Thu, 16 Jan 2025 19:29:35 +0000 List-Unsubscribe: , List-Unsubscribe-Post: List-Unsubscribe=One-Click Message-ID: MIME-Version: 1.0 Feedback-ID: 9468a951-a7da-4365-bba8-40a56b9254de:51c703a2-b031-452b-88bb-2eceb83411f2:email:epslh1 X-NSS: 9468a951-a7da-4365-bba8-40a56b9254de Reply-To: "ng@email.nationalgeographic.com" Subject: This discovery solves a decades-old Arctic mystery: plus, what are these 1,300 strange circles on the sea floor? From: National Geographic To: sterlingwhg@gmail.com Date: Thu, 16 Jan 2025 19:29:35 +0000 Content-Type: multipart/alternative; boundary="-=Part.1254f6.46542a2ddea12236.1947097a940.fb8c1d7a9094efff=-" X-Spam-Status: No, score=-10.7 X-Spam-Score: -106 X-Spam-Bar: ---------- X-Spam-Flag: NO ---=Part.1254f6.46542a2ddea12236.1947097a940.fb8c1d7a9094efff=- Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=UTF-8 NATIONAL GEOGRAPHIC
Banning red = dye; pandas are back in D=2EC=2E=E2=80=94see them; Bad Bunny=E2=80=99s love= letter to Puerto Rico=E2=80=99s tree frog ‌ ‌ &zw= nj; ‌ ‌ ‌ ‌ ‌ ‌=  ‌ ‌ ‌ ‌   ‌ ‌ ‌ ‌ ‌ ‌=  ‌ ‌ ‌ ‌ ‌ ‌&nb= sp;‌   ‌ ‌ ‌ ‌ ‌ ‌=  ‌ ‌ ‌ ‌ ‌ ‌&nb= sp;‌   ‌ ‌ ‌ ‌ ‌ ‌=  ‌ ‌ ‌ ‌ ‌ ‌&nb= sp;‌   ‌ ‌ ‌ ‌ ‌ ‌=  ‌ ‌ ‌ ‌ ‌ ‌&nb= sp;‌   ‌ ‌ ‌ ‌ ‌ ‌=  ‌ ‌ ‌ ‌ ‌ ‌&nb= sp;‌   ‌ ‌ ‌ ‌ ‌ ‌=  ‌ ‌ ‌ ‌ ‌ ‌&nb= sp;‌   ‌ ‌ ‌ ‌ ‌ ‌=  ‌ ‌ ‌ ‌ ‌ ‌&nb= sp;‌   ‌ ‌ ‌ ‌ ‌ ‌=  ‌ ‌ ‌ ‌ ‌ ‌&nb= sp;‌ 
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Thursday, January 16, 2025
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This we= ek=E2=80=99s Discovery newsletter uncovers a deadly Arctic mystery, praises Puerto Rico=E2=80=99s <= strong>legendary coqui=CC=81, examines the FDA ban on red dye= , traces lice=E2=80=99s surprising path =2E=2E=2E and explains these weird, perfect circles on the sea floor
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= PHOTOGRAPH BY BETTMANN/GETTY IMAGES 
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T= he trip was audacious=2E Launch a balloon and fly it to the North = Pole=2E To great fanfare, the three-member crew launched=E2=80=94and they v= anished within days=2E It took decades to recover key evidence=2E What happened?
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ARCTIC MYSTER= Y
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= PHOTOGRAPH BY MARESA PRYOR, DANITA DELIMONT / ALAMY 
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= PHOTOGRAPH BY ALEXEY V=2E LOPATIN 
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S= narl! It=E2=80=99s the world=E2=80=99s first saber-toothed cat mum= my=2E Where was it found?   

A=2E Canada=E2=80=99s Yukon
B=2E Mongolia
C=2E Patagonia
D=2E Siberia 
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REVEAL THE ANSWER
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T= oday=E2=80=99s Soundtrack: Le Coeur, Thievery Corporation (feat=2E LouLou Ghelichkhani) 

Today=E2=80=99s newsletter was edited and= curated by David Beard and produced by Alisher Egamov=2E Sign up here to get tomorrow=E2= =80=99s Top Ten stories of the week or catch Sunday=E2=80=99s Photo of The = Week=2E 
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