Box jellyfish
Although the notoriously dangerous species of box jellyfish are largely restricted to the tropical Indo-Pacific region, various species of box jellyfish can be found widely in tropical and subtropical oceans, including the Atlantic Ocean and the east Pacific Ocean, with species as far north as California ("Carybdea confusa"), the Mediterranean Sea ("Carybdea marsupialis") and Japan (such as "Chironex yamaguchii"), and as far south as South Africa (for example, "Carybdea branchi") and New Zealand (such as "Copula sivickisi").
Monterey Bay Aquarium
At least three exhibitions have been devoted entirely to displaying jellyfish. In 1989, the aquarium's second temporary exhibition, titled "Living Treasures of the Pacific", included three jellyfish tanks following the successful display of one tank of moon jellies four years earlier in 1985. In 1992, the first temporary exhibition for jellyfish opened, called "Planet of the Jellies", the success of which prompted a permanent jellyfish gallery within the Open Sea wing in 1996. Within 20 years of opening Planet of the Jellies, the aquarium created two more temporary exhibitions centered on jellyfish. The final one of the three exhibitions opened in 2012, and displayed around 16 species of jellyfish from around the world in "a psychedelic theme from the 1960s". Staff members attribute the organization’s fascination with jellyfish to their visual appeal, primitive biology, and reputed calming effect on visitors.