This is a marine worm, Dinophilus, and it’s parasitized by unicellular organisms called Grellia. You can see the parasites as blue, banana-shaped structures in this polarized view. . Dinophilus are a few millimeters in length and inhabit all marine environments. They eat algae and mind their own business without bothering anyone. However, the large population I had in one of my fishless tanks were all infected by a species of unicellular organism. . When I checked an odd-looking Dinophilus under

Christmas tree worm is the common name of a species of marine worm that lives in tropical coral reefs around the world. At the first sign of danger, Christmas tree worms quickly retreat into their burrows, hiding from potential predators. Here's a Christmas tree worm retracting in Mantanani Island, Sabah, Malaysia. #christmastreeworm #Mantanani #Sabah #Malaysia #Borneo #SabahWildlifeDepartment #SabahTourism #Scubazoo #SZtv | SZtv

1.6K views · 71 reactions | The Reef’s extraordinary #biodiversity...

The sea mouse is marine worm. Its body is covered in bristles - giving it a furry appearance. At the fringes are beautiful iridescent bristles that shimmer blue, green and gold. The sea mouse is an active predator, hunting small crabs and other worms on the seabed. | Get Wild

70K views · 106 reactions | Dans ce troisième épisode des “Lives du Team Garmin” - spécial Thon au broumé, prenez place sur son bateau et laissez-vous guider par Nicolas, Champion de France 2022, en Méditerranée équipé des dernières technologies Live Garmin dont la PS31. | Garmin Marine | Facebook