Icebergs can be biological hot spots

Material scraped off land by glaciers and carried to sea by icebergs nourishes life in frigid Antarctic waters.

BIOLOGY AHOY! Icebergs near Antarctica anchor thriving ecosystems, thanks to nutrients released by melting ice. K. Reisenbichler

Late in 2005, oceanographers conducted separate biological surveys near two large icebergs in the South Atlantic.