Science & Technology

  • Chinstrap penguin prancing on Prasiola crispa, a terrestrial green algae. (Ron Naveen/ OCEANITES)
  • Adélie penguin wing spread. (Ron Naveen/ OCEANITES)
  • Nesting Adélie penguins, Admiralty Bay. (Ron Naveen/ OCEANITES)
  • Penguin swimming, Antarctica. (John B. Weller)
  • Gentoo penguin headshot. (Ron Naveen/ OCEANITES)
  • Close up of fish below the Ross Sea. (John B. Weller, Courtesy of The Pew Charitable Trusts)
  • Close-up of krill. (Photo credit: grandfathered)
  • Below the Ross Sea. (John B. Weller)
  • Avalanche in the Lemaire Channel. (Ron Naveen/ OCEANITES)
  • Pods of killer whales, sometimes 100 strong, patrol the ice edges. Three separate ecotypes live in the Ross Sea, each specializing in a different diet. (John B. Weller)

Penguins Barometer for Ocean Health

Published June 06, 2014

One barometer of ocean health is the penguin, whose Southern Hemisphere range extends from the tropical Galapagos Islands near the equator to the ice shelf of Antarctica.

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