A cleaner goby cleans a grouper in a Caribbean coral reef. These little fish clean much bigger fish of parasites and bacteria. Where do you go when you’re a fish and you need a skincare treatment?

Let's Learn is available to stream on pbs.org and the free PBS App, available on iPhone, Apple TV, Android TV, Android smartphones, Amazon Fire TV, Amazon Fire Tablet, Roku, Samsung Smart TV, and ...

Wild fish are born with instincts that guide their swimming, but what would it mean to “teach” them? This deep dive explores natural behavior, survival skills, and the fascinating science behind how ...

They say two heads are better than one. But in the world of fish, it appears two fins are better than one. Researchers have produced a theoretical model that demonstrates the underlying mechanisms ...

Buckets or bags should be clean and free of soap residue. Even small traces of chemicals can be harmful to fish. Avoid ...

, spotted, and even some smallmouth bass become susceptible to these chunks of metal as fish move offshore and look for a reprieve in cooler, deeper waters. Here, schools of bass will group up on ...

Ivan Nagelkerken receives funding from the Australian Research Council (ARC). Angus Mitchell and Chloe Hayes do not work for, consult, own shares in or receive funding from any company or organization ...

Drop a worm in the water on a summer day and just try to not catch a bluegill. But in winter, sometimes those same big slabs get finicky and only bite best at classic walleye times—dawn and dusk.

Natel Energy is trying to design turbines that are safer for fish passing through. Hydropower is the world’s leading source of renewable electricity, generating more power in 2022 than all other ...

Like Olympic cyclists, fish expend less effort when swimming in tight groups than when alone. The finding could explain why some species evolved to move in schools. By Katrina Miller You’ll catch it ...

Where do you go when you’re a fish and you need a skincare treatment? Coral reefs contain natural “beauty salons,” lively social hubs of activity where fish “clients” swim up and wait to be serviced ...