![People standing in front of an large aquarium with a gray shark swimming in the image center.](http://upload.wikimedia.org/wikipedia/commons/thumb/4/4a/Hamburg_Aquvarium1.jpg/500px-Hamburg_Aquvarium1.jpg)
A shark swimming in the aquarium of the Tierpark Hagenbeck. The zoo was founded by Carl Hagenbeck in 1907.
Photo credit: Artinzaman
A shark swimming in the aquarium of the Tierpark Hagenbeck. The zoo was founded by Carl Hagenbeck in 1907.
Photo credit: Artinzaman