Sharks are a remarkable, diverse group of ocean-dwellers that inhabit marine ecosystems all over the world. From the massive, ...

Dive in and explore the big ocean with this ocean zones in a jar activity! The vast ocean that surrounds us provides a great lesson in learning about density. Make a ocean zones jars so that you ...

During their four-year voyage, the Challenger crew collected samples of rocks, mud and animals from many different areas of the ocean. They also found one of the deepest zones, in the western ...

In the last 50 years, oxygen-deficient zones in the open ocean have increased. Scientists have attributed this development to rising global temperatures: Less oxygen dissolves in warmer water, and the ...