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The world’s largest penguin colony has declined by two-thirds since 2011, most likely because of the climate crisis, a study has revealed. Scientists said the rapid demise of chinstrap penguins on Zavodovski, the northernmost of the South Sandwich Islands in Antarctica, increased the risk of a wider ecosystem collapse. Antarctica’s Zavodovski Island is home to the largest penguin super-colony in the world“It is an enormous population crash, equivalent to half a million breeding individuals being lost from that island,” said the leader of the research, Prof Norman Ratcliffe, a penguin ecologist at the British Antarctic Survey. The Guardian revealed in 2020 that chinstrap penguin populations were decreasing on Low in the South Shetland Islands, prompting concerns among scientists that “something is broken” in the world’s wildest ecosystem. A penguin colony below Mount Curry on Zavodovski. The island had the biggest colony in the world in 2011.

Published: October 07, 2026 at 8:39p.m. EDTAn uninhabited volcanic island in the Southern Ocean used to be home to the largest penguin colony in the world — but not anymore. Scientists have discovered the staggering loss of more than half a million chinstrap penguins from the isolated outcrop. Chinstrap penguins, named for the narrow band of black feathers under their chins, thrive in harsh locations and Zavodovski Island fits the bill perfectly. Part of the South Sandwich Islands archipelago north of Antarctica, the island is wild, craggy and windswept. Zavodovski is home to both chinstraps and macaroni penguins, which have distinctive yellow feather plumes on their heads. In 2011, it was named the largest penguin colony in the world, but when British Antarctic Survey researchers travelled to the island in 2023, they found the chinstraps had suffered huge declines. CNN Penguin colony A penguin colony on Zavodovski Island. (Credit: John Dickens via CNN Newsource) More than half a million have been lost since 2011, representing a quarter of the island’s penguins, according to the the findings published Wednesday in the journal Current Biology.

Taylor Knibb headlines a deep U. S. contingent at Saturday’s IRONMAN World Championship in Kona. COLORADO SPRINGS, Colo. — The IRONMAN World Championship returns to its roots Saturday, Oct. 10, as the world’s best professional and age-group triathletes take on one of the sport’s most iconic courses in Kailua-Kona, Hawai‘i. For the first time since 2019, professional men and women will race together on the Big Island on the same day, bringing the championship back to a one-day format after three years of the men’s and women’s races rotating between Kona and Nice, France. More than 2,500 athletes are expected to take on the legendary 140.6-mile course, including a deep U. S. contingent. Fourteen American professionals — seven women and seven men — are set to race, led by U. S. National Team member and reigning IRONMAN 70.3 World Champion Taylor Knibb (Boulder, Colo.). U. S. Paralympian Howie Sanborn will also take on Kona less than two weeks after representing Team USA at the World Triathlon Para Championships in Pontevedra, Spain.

U. S. cloud giants are facing steep prices to secure backup internet routes around the Red Sea as fighting rages over the Red Sea strait that carries most data cables between Europe and Asia. More than 90% of data capacity between Europe and Asia runs through cables under the Red Sea. The cables enter the sea at Bab al-Mandab, a strait less than 32 kilometers (20 miles) wide between Yemen and the African nations of Djibouti and Eritrea.

Whether you’re charging into battlegrounds with your faction or setting your sights on long-term PvP (Player vs. Player) goals, World of Warcraft: Forever brings a refreshed sense of purpose to every match-up. This approach gives players more reasons to take part throughout the season while preserving the spirit of competition that defined PvP in the original World of Warcraft. When reimagining the PvP system, we wanted to keep the design pillar of “Approachable and Familiar” firmly in view: simplifying the original Honor System while staying true to its roots.

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Some of the best mountain runners in the world are heading to Mont-Sainte-Anne, Que., this weekend, where the World Mountain Running Association (WMRA) Mountain Running World Cup will wrap up its 2026 season at Défi des Couleurs. The Oct. 10-11 races will mark the first time the World Cup has visited Canada, and the first time its final has been held outside Europe. Défi des Couleurs is now in its 13th edition and brings thousands of runners to Mont-Sainte-Anne during peak fall colour. This year, the World Cup races will be held alongside the Canadian Mountain Running Championships, with the Classic Up & Down also serving as the Coupe Quebec Trail final.

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Jon Rahm’s time with LIV Golf is ending, his lawyer confirmed on Tuesday. A two-time major winner, Rahm was LIV’s highest-profile recruit. Joining in December of 2023, Rahm signed a deal worth a reported $300 million with the Saudi-backed breakaway league. TSN Golf analyst Bob Weeks has more. October 07, 2026 at 10:32p.m. EDT