Browse 370+ fish swimming up stream stock illustrations and vector graphics available royalty-free, or start a new search to explore more great stock images and vector art. Different vector sets of ...

In the vast, open water, fish rarely swim solo. Instead ... five photos that beautifully illustrate why fish choose to group up. Striped eel catfish displaying schooling behavior.

researchers noticed several instances of deep-sea fish seemingly swimming backward. Were they seeing that right? For years, scientists assumed that, “in the darkness and relatively featureless ...

If you notice your fish swimming up against objects in the tank to rub or bang against them, it might be trying to rub off a parasite that is making its skin itchy. When this happens, check its ...