‘Almost unprecedented’ event attributed to warm temperatures and winds, with some areas more than 20C (36F) warmer than usual

Researchers say they have discovered a novel species of comb jelly using video footage, but they couldn’t recover a physical specimen. Is that enough?

Image 2 of 24 from gallery of When Droplets Create Space: A Look at Liquid Architecture. HtwoOexpo, Interactive Museum. Neeltje Jans Island, Netherlands, 1997. Architect: NOX, Lars Spuybroek. Image © NOX/Lars Spuybroek