Giant clone of seaweed discovered in the Baltic Sea https://phys.org/news/2025-03-giant-clone-seaweed-baltic-sea.html
"a small, bushy form of #seaweed that was previously thought to be a separate species is a clone of bladderwrack. The clone has formed new populations by dispersing fragments of an original female plant with the currents and growing into new individuals. The clone spreads over more than 500 km of the coast of the Bothnian Sea, from Öregrund to just south of Umeå, and may be the world's largest clone of any organism"