Earth’s history written in the stars: Zircon crystals reveal galactic influence
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Updates every hour. Last Updated: 27-Oct-2025 07:11 ET (27-Oct-2025 11:11 GMT/UTC)
Tokyo, Japan – Scientists from Tokyo Metropolitan University have determined the genetic lineage of a now extinct plant population from Nishinoshima, a volcanic island whose frequent eruptions periodically “reset” the vegetation. While they traced the lineage to a nearby island, they discovered distinct genetic quirks due to the rarity of seeds making it there, including a “founder’s effect”. Their findings offer a rare glimpse into the very earliest stages of ecosystem development in an isolated environment.
The kelp forest is ephemeral, yet foundational. Fronds of this fast-growing giant seaweed come and go with the seasons, storms and waves, supporting communities of fish, invertebrates and even mammals wherever they emerge. As dynamic as they are in the ocean, kelp forests are also essential for its nearby shoreline communities, as fronds of this seaweed wash up on the beach, providing sustenance for invertebrates and serving as the foundation of beach food webs.