PHOTO: Flickr/CrookRW

At the end of a 23-week exhibit at the Tate Modern museum in London, 9,000 butterflies are dead. While on display for 3,000 visitors, many were crushed under people’s shoes or died from the unnatural environment. Animal rights organizations are criticizing the exhibit, while the museum defends it. The artist, Damien Hirst, has done past exhibits with animals, including putting dead sharks and cows in tanks filled with chemicals.