About nine million tons of visible plastic trash enter oceans each year—then there’s the waste we can’t see. This story appears in the May 2019 issue of National Geographic magazine.

JERSEY SHORE — Along the shoreline over the past several weeks, beachgoers have spotted a tiny, orange tropical fish - one that's certainly a long way from home. The fish has been identified as ...

Since most of our planet is comprised of water - with the ocean making up over 70% of the Earth’s surface - there’s a lot to be discovered in the sea, and it’s a place that captivates at ...

But have you ever wondered what plants and animals live in the ocean and how they survive underwater? Well, pack your swimsuit, we're off to find out! Look at all these fish! Big fish! Small fish!

Pteropods: Seawaters are already corrosive enough in some areas to erode the shells of these small sea “butterflies.” Pteropods are tiny snails that are found throughout the oceans and are an ...