The free screensaver Jellyfish Swarms was created by RateMyScreensaver.com and contains 22 high resolution images of Jellyfish. A group of jellyfish is often called a smack. Many species of jellyfish are also capable of congregating into large swarms or blooms consisting of hundreds or even thousands of individuals. The formation of these blooms is a complex process that depends on ocean currents, nutrients, temperature and oxygen content. Jellyfish will sometimes mass breed during blooms. Jellyfish population is reportedly raising major ecological concerns for a possible jellyfish outbreak. - wiki Screensaver Picture Count: 22 Screensaver Type: Slideshow Credit: All images in this screensaver fall under one of the following licenses: Creative Commons, Attribution ShareAlike 2.0, public domain, GNU Free Documentation License