Deep Blue Sea, 1999. Directed by Renny Harlin. Starring Thomas Jane, Saffron Burrows, Samuel L. Jackson, Stellan Skarsgård, ...

"The clear marine ice can vary in color from deep blue, to green, to even brownish yellow, depending upon the concentration of constituents in the sea water," Collin Roesler, an oceanographer at ...

The animal's eyes change from a golden colour to a deep blue as summer fades to winter, helping it to see in dramatically different light levels. The part that changes colour is called the tapetum ...