Sharks and penguins living together at Cal Academy

July 31, 2012 12:22:56 PM PDT
Sharks and penguins living together? It sounds strange, but it's actually a match made in heaven at the California Academy of Science in San Francisco's Golden Gate Park.

Six pyjama sharks were released into the Steinhart Aquarium Tuesday morning, joining a colony of African penguins. Biologists say not to worry. The seemingly unlikely housemates co-habitate in the wild along the South African coast.

The pyjama sharks are nocturnal bottom feeders and shy by nature, while the penguins fish in shallow waters during the day.