Setting up an aquarium requires more than just buying a tank and filling it with water. You must also determine tank size, water temperature, and, of course, the fish that will call the tank home. To ...

Some species are showing up hundreds of kilometers beyond their usual home range. Many tropical fish arrive on temperate reefs during summer, and used to die over winter when the water grew colder.

You don’t need to have a huge tank to keep tropical fish, ...

"Increasingly, we are becoming tropicalized." Last summer, images of tropical fish flooded Facebook groups like Snorkel Nova Scotia. Marine ecologist Boris Worm says it’s an indicator of just how fast ...

Tropical fish are accidentally carried north to New England each summer by the Gulf Stream current. A network of institutions and citizen scientists called the Gulf Stream Orphan Project tracks these ...

When you think about climate change in our oceans, you may picture coral bleaching, melting sea ice, or extreme weather events. But beneath the ocean’s surface, another quiet shift is underway.