One of the many types of sponges that have been found to act as hosts to branching worms. (IMAGE)

University of Göttingen

One of the many types of sponges that have been found to act as hosts to branching worms.

Caption

One of the many types of sponges that have been found to act as hosts to branching worms. This one is called Crateromorpha meyeri and it is a deep-sea, glass sponge found in Okinawa, Japan. In this close up of its main opening it is possible to see semi-transparent threads: an example that the newly identified genus of branching worm, Cladosyllis, is living inside.

Credit

Naoto Jimi

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