POEL, Germany — April 5, 2026 A humpback whale stranded near the island of Poel in the Baltic Sea sang continuously overnight, its calls captured by specialized microphones installed by an experimental musician. The whale began vocalizing around 11 p.m. on Friday and continued until morning, with its frequencies detectable even 4 kilometers away in the musician’s accommodation. Authorities and volunteers have been monitoring the whale around the clock, keeping it hydrated with regular water sprays from firefighters. Environment Minister Till Backhaus, who visited the site on Saturday, reported the whale was breathing every 2–5 minutes and had resumed vocalizing. New injuries, likely from ship propellers and fishing nets, were discovered on the whale’s body. Backhaus ruled out euthanasia, stating, “We will not kill the whale.” Experts plan to reassess the whale’s condition after Easter to determine its chances of survival. The unusual acoustic monitoring effort highlights the rare and precarious situation of the stranded marine mammal.