https://www.spreaker.com/podcast/beyond-the-frozen-horizon--7257499enNatureCopyright Chloe Rivershttps://d3wo5wojvuv7l.cloudfront.net/t_rss_itunes_square_1400/images.spreaker.com/original/1bb86d7c469054e158b44805fe2b7db6.jpghttps://www.spreaker.com/podcast/beyond-the-frozen-horizon--7257499Wed, 09 Sep 2026 10:10:51 +0000Chloe RiversChloe Riversfeeds@spreaker.comBeyond the Frozen Horizon is a cinematic science and natural history podcast exploring the wildlife, oceans, ice, landscapes, and unanswered questions of the Arctic. From polar bears hunting across sea ice and narwhals moving beneath frozen oceans to...false3e34979e-d275-58ea-8c9c-50f0691c0ec9episodichttps://www.spreaker.com/episode/when-winter-changes-the-color-of-your-eyes--75020346In this episode of Beyond the Frozen Horizon, we explore how an Arctic animal physically rebuilds part of its visual system as the seasons change, why sharper vision may become less important than sensitivity, and how the strange blue light of polar winter helped shape one of nature's most unusual eyes.


Beyond the Frozen Horizon
Science, wildlife, and discovery from the far north.]]>https://api.spreaker.com/episode/75020346Wed, 09 Sep 2026 10:09:27 +0000Chloe RiversAs Arctic summer fades into months of twilight and darkness, reindeer do something almost unknown among mammals. The reflective layer behind their retinas changes from golden in summer to deep blue in winter. In this episode of Beyond the Frozen...In this episode of Beyond the Frozen Horizon, we explore how an Arctic animal physically rebuilds part of its visual system as the seasons change, why sharper vision may become less important than sensitivity, and how the strange blue light of polar winter helped shape one of nature's most unusual eyes.


Beyond the Frozen Horizon
Science, wildlife, and discovery from the far north.]]>499adaptation,arctic,biology,caribou,documentary,lucidum,nature,night,polar,rangifer,reindeer,science,tapetum,tarandus,ultraviolet,vision,wildlife,winterfalsefullhttps://www.spreaker.com/episode/the-fox-that-walked-across-an-ocean--73848644This episode follows one extraordinary journey across glaciers, frozen ocean, and polar desert, revealing why sea ice is more than frozen water. For the Arctic fox, it can become a road between continents.


Beyond the Frozen Horizon
Science, wildlife, and discovery from the far north.]]>https://api.spreaker.com/episode/73848644Wed, 12 Aug 2026 14:22:32 +0000Chloe RiversIn the spring of twenty eighteen, a young Arctic fox left an island in Svalbard and began walking north. Weeks later, her satellite signal appeared on the other side of the Arctic, in Canada. This episode follows one extraordinary journey across...This episode follows one extraordinary journey across glaciers, frozen ocean, and polar desert, revealing why sea ice is more than frozen water. For the Arctic fox, it can become a road between continents.


Beyond the Frozen Horizon
Science, wildlife, and discovery from the far north.]]>387animal,arctic,biology,documentary,ellesmere,fox,greenland,ice,island,lagopus,migration,mysteries,nature,polar,sea,svalbard,tracking,vulpes,wildlifefalsefullhttps://www.spreaker.com/episode/where-the-ice-leaves-only-one-way-home--73848530This episode follows the narwhal beneath the ice to explore its extraordinary diving ability, its use of echolocation, and the mysterious spiraled tooth that has made it one of the most recognizable animals in the Arctic.


Beyond the Frozen Horizon
Science, wildlife, and discovery from the far north.]]>https://api.spreaker.com/episode/73848530Wed, 12 Aug 2026 14:17:56 +0000Chloe RiversBeneath the winter ice of the Arctic, a narwhal can descend into darkness more than a kilometer below the surface. But every dive carries one unavoidable condition. Eventually, the whale must find open water again to breathe. This episode follows the...This episode follows the narwhal beneath the ice to explore its extraordinary diving ability, its use of echolocation, and the mysterious spiraled tooth that has made it one of the most recognizable animals in the Arctic.


Beyond the Frozen Horizon
Science, wildlife, and discovery from the far north.]]>482arctic,biology,diving,documentary,echolocation,ice,mammals,marine,monoceros,monodon,mysteries,narwhal,nature,ocean,polar,science,sea,whale,wildlifefalsefullhttps://www.spreaker.com/episode/a-life-longer-than-memory--73848431This episode explores how scientists discovered their remarkable longevity, why growing slowly may be part of surviving in cold deep water, and how an animal can carry centuries of history inside the lens of its eye.


Beyond the Frozen Horizon
Science, wildlife, and discovery from the far north.]]>https://api.spreaker.com/episode/73848431Wed, 12 Aug 2026 14:10:28 +0000Chloe RiversBeneath the cold waters of the Arctic and North Atlantic, a large shark moves with extraordinary slowness. Some Greenland sharks alive today may have begun their lives centuries before modern science knew they existed. This episode explores how...This episode explores how scientists discovered their remarkable longevity, why growing slowly may be part of surviving in cold deep water, and how an animal can carry centuries of history inside the lens of its eye.


Beyond the Frozen Horizon
Science, wildlife, and discovery from the far north.]]>504animals,arctic,biology,cold,deep,documentary,greenland,longevity,marine,microcephalus,mysteries,nature,ocean,polar,science,sea,shark,somniosus,water,wildlifefalsefullhttps://www.spreaker.com/episode/how-can-a-shark-live-for-centuries--73831947This episode follows the Greenland shark and the unusual scientific method researchers used to estimate its age, before asking the deeper question. Is extreme longevity simply the result of cold water and a slow life, or is something more complicated happening inside one of the longest lived vertebrates known to science?


Beyond the Frozen Horizon
Science, wildlife, and discovery from the far north.]]>https://api.spreaker.com/episode/73831947Wed, 12 Aug 2026 02:25:21 +0000Chloe RiversIn the cold waters of the Arctic and North Atlantic lives a shark whose lifetime may span several human centuries. This episode follows the Greenland shark and the unusual scientific method researchers used to estimate its age, before asking the...This episode follows the Greenland shark and the unusual scientific method researchers used to estimate its age, before asking the deeper question. Is extreme longevity simply the result of cold water and a slow life, or is something more complicated happening inside one of the longest lived vertebrates known to science?


Beyond the Frozen Horizon
Science, wildlife, and discovery from the far north.]]>544adaptation,aging,animal,arctic,biology,deep,documentary,greenland,longevity,marine,nature,ocean,podcast,polar,science,sea,shark,wildlifefalsefullhttps://www.spreaker.com/episode/the-whale-that-hunts-in-the-dark-beneath-the-ice--73831897This episode follows a narwhal beneath the winter ice to discover how it finds prey without vision, how echolocation turns sound into information, and why living beneath frozen ocean demands a remarkable balance between deep diving and the simple need to return to air.


Beyond the Frozen Horizon
Science, wildlife, and discovery from the far north.]]>https://api.spreaker.com/episode/73831897Wed, 12 Aug 2026 02:20:55 +0000Chloe RiversDuring the Arctic winter, narwhals move through dark water beneath drifting pack ice, sometimes diving deep along the continental slope where sunlight cannot reach. This episode follows a narwhal beneath the winter ice to discover how it finds prey...This episode follows a narwhal beneath the winter ice to discover how it finds prey without vision, how echolocation turns sound into information, and why living beneath frozen ocean demands a remarkable balance between deep diving and the simple need to return to air.


Beyond the Frozen Horizon
Science, wildlife, and discovery from the far north.]]>767animal,arctic,baffin,bay,deep,diving,echolocation,greenland,ice,mammals,marine,narwhal,ocean,polar,science,sea,sounds,whale,wildlifefalsefullhttps://www.spreaker.com/episode/how-does-a-polar-bear-hunt-what-it-cannot-see--73831800This episode explores how polar bears turn an apparently featureless sheet of ice into a hunting landscape, how seals maintain access to air beneath the frozen ocean, and why smell, patience, timing, and sea ice are all part of the same extraordinary relationship.


Beyond the Frozen Horizon
Science, wildlife, and discovery from the far north.]]>https://api.spreaker.com/episode/73831800Wed, 12 Aug 2026 02:15:21 +0000Chloe RiversAcross the frozen Arctic Ocean, a polar bear may stop beside an opening in the sea ice and wait. Beneath its feet, somewhere in the dark water, a ringed seal must eventually return to the surface to breathe. This episode explores how polar bears turn...This episode explores how polar bears turn an apparently featureless sheet of ice into a hunting landscape, how seals maintain access to air beneath the frozen ocean, and why smell, patience, timing, and sea ice are all part of the same extraordinary relationship.


Beyond the Frozen Horizon
Science, wildlife, and discovery from the far north.]]>718adaptation,animal,animals,arctic,bear,behavior,biology,documentary,ice,nature,ocean,podcast,polar,predator,prey,ringed,science,sea,seal,wildlifefalsefull