『Migration』のカバーアート

Migration

Migration

著者： Podra Network
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The greatest journeys on Earth — the science, the spectacle and the mystery of animal migration.Copyright Podra Network 生物科学 科学
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  • The Sky Rivers: Bar-Tailed Godwits and Record-Breaking Flights

    The Sky Rivers: Bar-Tailed Godwits and Record-Breaking Flights
    2026/06/04
    Join host David Hale as he explores the incredible world of bar-tailed godwits, the champion long-distance migrants of the bird world. Discover how these unassuming shorebirds accomplish the longest non-stop flights in the animal kingdom, traveling over 7,000 miles across the Pacific Ocean without landing. Learn about the remarkable physiological changes these birds undergo to prepare for their epic journeys, from doubling their body weight to shrinking their digestive organs. Explore the cutting-edge satellite tracking technology that revealed their use of 'sky rivers' – atmospheric highways of favorable winds that carry them across vast oceanic expanses. Meet E7, the record-holding female who flew non-stop from Alaska to New Zealand in just over eight days. Understand the complex navigation systems godwits use to cross thousands of miles of open ocean with pinpoint accuracy, including magnetic fields, celestial cues, and possibly infrasound. Examine the challenges these incredible migrants face from climate change and habitat loss, particularly the disappearing coastal wetlands crucial to their survival. This episode reveals how bar-tailed godwits represent one of nature's most spectacular examples of endurance, navigation, and adaptation in the face of seemingly impossible odds.
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    6 分
  • When Giants Move: Tracking Humpback Whales Across Oceans

    When Giants Move: Tracking Humpback Whales Across Oceans
    2026/05/28
    Dive into the extraordinary world of humpback whale migration in this episode of Migration. Host David Hale explores how these 40-ton giants undertake the longest mammalian migration on Earth, traveling up to 25,000 kilometers annually between polar feeding grounds and tropical breeding areas. Discover the fascinating science behind whale navigation, the role of their complex songs in migration, and how modern tracking technology has revealed previously unknown trans-oceanic routes. Learn about the remarkable conservation success story that brought North Pacific humpback populations back from near extinction, and explore how climate change is reshaping ancient migration patterns. From synchronized swimming behaviors to months-long fasting periods, this episode reveals the incredible adaptations that allow humpback whales to connect polar and tropical ecosystems across entire ocean basins. Perfect for marine biology enthusiasts, conservation advocates, and anyone fascinated by animal behavior and ocean ecology. Keywords: humpback whale migration, marine biology, whale conservation, ocean ecosystems, animal navigation, whale songs, climate change impacts, Pacific Ocean, Antarctic feeding grounds, mammalian migration patterns.
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    6 分
  • The Magnetic Pull: Earth's Hidden Migration Highway

    The Magnetic Pull: Earth's Hidden Migration Highway
    2026/05/21
    Discover how Earth's magnetic field serves as nature's GPS system, guiding millions of animals on epic migrations across continents and oceans. Host David Hale explores the fascinating science of magnetoreception – the ability of creatures like sea turtles, migratory birds, and monarch butterflies to detect and navigate using magnetic fields. Learn about cutting-edge research revealing quantum mechanics in bird vision, magnetic crystals in animal brains, and how species use magnetic landmarks as underwater highways. The episode examines current challenges facing migrating animals, including electromagnetic pollution from human technology and shifting magnetic fields due to climate change. From Arctic terns traveling 44,000 miles annually to sea turtles returning to their exact birth beaches decades later, discover the remarkable navigation abilities that have captivated scientists for generations. Explore how indigenous cultures recognized these natural navigation skills and how modern research into biological magnetoreception could revolutionize human navigation technology. Perfect for nature enthusiasts, science lovers, and anyone curious about the invisible forces shaping animal behavior and the interconnected systems governing our planet.
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    5 分
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