Ecology Water

Plastic: it's used to make everything from drink bottles and bags to toys and toothbrushes. But what happens when it ends up where it doesn't belong - like in the Pacific Ocean? How does it affect ocean life? Is it dangerous? And exactly how much is out there? A team of researchers went on a scientific expedition to find out. They explored the Great Pacific Garbage Patch, where millions of pieces of plastic have collected.

Seasons change in the ocean much as they do on land. Spring brings new plants and baby animals, summer oceans glow with sparkly plankton lights, and autumn winds blow across the open water. In winter the humpback whales migrate to warmer waters, just as some land animals move to warmer climates.

Why a saltwater aquarium? There's nothing more spectacular than the diversity of the ocean. A saltwater aquarium setup allows you to bring a little sample of that spectacle into your own living room. Compared to plain freshwater tanks (which commonly contain goldfish and other lake-bred varieties of fish), there are many more options if you're planning to choose a saltwater aquarium setup. The fish and other ocean creatures you'll be able to host range from beautiful to fascinating to downright weird, some displaying flashy colors while others exude a quiet grace.