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Who lives in a sponge under the sea? Tiny Caribbean fish and their microscopic neighbors

Phys.org · WORLD · Science · 11/13/2026, 1:00:12 PM

Two new studies involving Newcastle University marine scientist Dr. Theresa Rueger have highlighted how the tusked goby's relationship with its host sponge shapes almost every aspect of its life. Rueger, a senior lecturer in tropical marine sciences at Newcastle University's School of Natural and Environmental Sciences, is senior author of one study and co-author of the other, which together uncover the influence of sponges on the tiny Caribbean reef fish's social behavior, growth, reproduction and microbiome.

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