Follow Scientists on a Daring Mission to the Danger Islands, a Penguin-Breeding Stronghold

Each November, roughly one-fifth of the world’s Adélie Penguins collect to nest on seven craggy outcrops close to the tip of the Antarctic Peninsula. The Hazard Islands cowl simply 1.7 sq. miles however present breeding grounds for the world’s largest recognized Adélie inhabitants—solely found a couple of decade in the past—plus at the least 9 different chook species, together with Gentoo Penguins. 

To guard them, Germany and the USA efficiently campaigned in 2024 to designate the Hazard Islands as an Antarctic Specifically Professional­tected Space. In late 2025, as a part of Germany’s new responsibil­ity to handle the conservation zone, scientists there spearheaded a scientific expedition to the islands to check the penguins and rising threats—and attempt to get forward of them in order that the birds proceed to thrive. 

Circumstances for penguins are altering quick: The Antarctic Peninsula is warming 5 occasions quicker than the worldwide common. As sea ice has dwindled, so have the shrimplike krill that an­chor the Southern Ocean meals chain, together with for penguins. In flip, scientists have noticed Adélie Penguins declining in components of the peninsula. To wager­ter perceive how penguins could also be responding to those modifications, the expedition got down to achieve a extra exact depend of Adélies breeding on the Hazard Islands. 
 

The group additionally assessed the risk from avian flu, which reached Antarctic wildlife as early as 2023. Though the dis­ease hasn’t but been detected in penguins, together with on the most recent mission, researchers are watch­ing intently. “Tens of millions of penguins which can be so shut collectively may actually be heaven for a virus,” says Simeon Lisovski, a biologist on the Alfred Wegener Institute.

For a clearer image of how threats to their meals supply would possibly have an effect on penguins, the group was additionally desperate to inves­tigate the place the birds forage whereas rearing chicks. Lisovski and biologist Noell Heid glued satel­lite GPS monitoring gadgets to 22 Adélie Penguins. The gadgets will transmit the penguins’ positions each 10 minutes till they fall off—hopefully not till March, after the breeding season—permitting the group to trace the birds remotely from Germany. 

Al­prepared some findings are elevating eyebrows. Of their pursuit of krill, some birds make weeklong journeys as much as 124 miles north­ward. It is a surprisingly lengthy distance for penguin dad and mom to journey, since their chicks want fixed feeding, says German Atmosphere Company ecologist Fritz Hertel, who initiated the expedition. 

Worryingly, it sug­gests that there’s not sufficient meals obtainable close to the colony. For now, solely the Hazard Is­lands themselves are protected, not the encircling marine setting, which may depart penguin foraging areas in danger from overfishing. The group plans to revisit the archipelago each different yr, and by 2029 Hertel and his colleagues hope to have gathered sufficient information to make a convincing case for expanded protections.

The Hazard Islands earned their identify for being hidden underneath thick pack ice, doubtlessly working ships aground. As sea ice has receded, the islands have develop into extra accessible—however solely simply. The waters surrounding them are shallow and never properly mapped. Most giant icebreakers can not safely get shut, so the group opted as a substitute for a nimbler sailboat, the Malizia Explorer. This gave them extra flexibility however made the wind and ice larger hazards, forcing first mate Marin-Louis Moreau to typically spend hours on the mast looking for a protected pathway. 

The scientists hunkered down inside, planning and ready for his or her alternative to climb ashore: Ultimately, the situations allowed them solely 12 hours on land on the Hazard Islands. However throughout their temporary keep, they gathered important information and had been handled to “lovely climate and probably the most gorgeous surroundings and light-weight,” says photographer Esther Horvath, who makes a speciality of polar exploration. “It was really an adventurous scientific expedition.”

This story initially ran within the Spring 2026 problem as “Navigating Hazard.” To obtain our print journal, develop into a member by making a donation today.