African Penguin - Brief information about Spheniscus demerus. African Penguin - Information from Wikipedia on Spheniscus demersus, including its description, behavior and threats. African Penguin (Spheniscus demersus) - Many photographs and video clips of this species and information on its biology and status. Penguin Cam - Webcam of Rockhopper Penguin and Blackfooted Penguin exhibit at Monterey Bay Aquarium. Provides link to fact sheet on Blackfooted Penguins. Spheniscus demersus (Jackass Penguin) - Discusses the ecology and behavior of this bird. Includes a photograph. Spheniscus humboldti (Peruvian Penguin) - Photo and scientific classification of this species. Effect of Substrate and Ambient Temperature on Burrowing African Penguins - Article on research into the nesting habits of Spheniscus demersus.