Comb jellies (Ctenophora) at Tåjebukta Håøya, inner Oslofjord. The comb jellies produce a rainbow effect, which is not caused by bioluminescence but by diffraction – the scattering of light – as the cilia on the combs beat. Underwater photo by Elin T. Sørensen © BONO 2019.
The shore crabs at Solbergstrand
— and the marine biologist's Sunday walk (video 7:06)
Tube-building Annelids (Pomatoceros triqueter)
— the Fantastic Marine Architects (video ∞)
— 21 short glimpses into the inner Oslofjord