1.   But Dr. William Fraser of Montana State University recently reported an anomaly in penguin colonies that remains to be explained.

2.   Controversies have plagued his tenure, from the death of Hannibal the elephant to the decimation of its penguin colony by disease.

3.   Sights include Pia Glacier, the islands of Tierra del Fuego, the Magellan Forest and the penguin colonies at Magdalena Island.

4.   AAD researchers are also trying to limit a possible spread of the disease by humans by restricting access to penguin colonies and sanitizing boots and clothing.

5.   A missing bulk carrier could be responsible for a massive oil spill which is polluting penguin colonies and dumping black slime on tourist beaches here, officials said Sunday.

6.   Both islands boast large penguin colonies, which have been devastated by the thick sludge.

7.   The thick crude has caused the worst-ever ecological disaster on the Atlantic seaboard off Cape Town, polluting penguin colonies and covering tourist beaches in black slime.

8.   Thick oil washed up on the main tourist beaches here overnight and, since Thursday, has been seriously polluting Jackass penguin colonies on two offshore islands.

9.   The air strip, criticised by environmentalists for disturbing penguin colonies, was badly damaged in a storm last year.