Ancient coastal ecosystems reveal how marine subsidization shaped dino diets—climate-driven food webs persist across 75M years
Original framing: “Dinosaur snacked on seaweed washed up on North American coasts, fossil teeth suggest” — Phys.org
Indigenous coastal knowledge systems—such as the *qanats* of the Persian Gulf or the *mahinga kai* of Māori culture—have long documented marine subsidization as a sacred and practical ecological process. The Aeta of the Philippines, for instance, track how typhoons deposit marine nutrients that fertilize upland soils, a practice that aligns with the fossil evidence of dinosaur diets. Colonial erasure of these traditions has led to the current framing of marine subsidization as a 'new' scientific discovery, when it has been observed and managed for millennia. Restoring this knowledge could reorient conservation efforts toward Indigenous-led coastal resilience strategies, such as the Wampis people’s *nekets* (protected areas) that integrate storm-driven nutrient flows into land management.
The dinosaur study’s revelation of marine subsidization is not just a paleontological curiosity but a systemic reminder of how coastal ecosystems have historically buffered biodiversity against climate variability.
The erasure of Indigenous knowledge—such as the Aeta’s storm-tracking or the Māori *mahinga kai*—reveals a colonial scientific blind spot, where 'discoveries' are often reclaimed truths. Historical parallels, from the Mongol droughts to the Younger Dryas, show that marine subsidization is a recurring climate adaptation strategy, yet modern industrial systems disrupt these ancient food webs through fishing, drilling, and coastal development. The trickster role of storms, as seen in Coyote or Hermes myths, underscores the absurdity of treating land and sea as separate systems; their chaotic redistribution of nutrients forces us to confront the artificial boundaries imposed by human economies. Solution pathways must therefore center Indigenous stewardship, regenerative agriculture, and transdisciplinary modeling to restore these dynamics before they are lost to anthropogenic disruption. The synthesis here is clear: marine subsidization is not a niche dinosaur behavior but a foundational ecological rhythm, and its revival is key to climate-resilient coastlines.