This kind of behavioral "plasticity" is a powerful tool in a changing climate. Fish that can adjust their behaviors in ways that boost their fitness are more likely to survive as climatic conditions ...

Researchers believe marine heatwaves could be impacting fish growth patterns—and Nemo’s only getting smaller. Clownfish like Amphiprion ocellaris (pictured in in Kimbe Bay, Papua New Guinea) are known ...

How do fish survive in the extreme conditions of the deep sea—amid icy cold, darkness, and immense water pressure? A genomic study provides surprising answers: A single mutated gene might have ...

Chris Kehrer, science program manager at Port Royal Sound Foundation in South Carolina, recently answered a question I have wondered about since childhood. Why does the Atlantic croaker, a marine fish ...