Freshwater makes up less than three percent of Earth’s water supply but is home to almost half of all fish species. Puerto Rican mountain mullet reside in El Yunque National Forest. Known to the ...

These unique fish are usually found in shallow ocean water, but a few species are found in freshwater. Here’s what you need to know about these inflatable fish, especially the freshwater species.

All oscar fish have the same care requirements, but these varieties are guaranteed to make visitors want an aquarium of their ... winding over a dark blue background. The coloration is striking ...

The Shedd Aquarium is displaying the new "Wonder of Water" exhibit in its historic rotunda, saying the exhibition is a century in the making. The aquarium on the Museum Campus in Chicago features ...