New research has found that roughly half of Australia's freshwater fish are fond of snacking on animal and plant material, ...

When oxygen disappears, most fish suffocate. This one ferments its own metabolism and waits months for spring beneath frozen ...

Tyrannosaurus rex lived longer and took more time to reach its maximum size than previously thought, according to a new study.

Vitamin D is a fat-soluble vitamin critical for bone growth and cell development. Rainbow trout, salmon, sardines, tuna, mackerel, and herring are good sources.