sentences:  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.Monterey Bay Aquarium helped create momentum for the establishment of the Monterey Bay National Marine Sanctuary in 1992, one of the largest marine protected areas in the United States.