017- Dead Sea
Although the high salinity of the Dead Sea makes it inhospitable to aquatic life, the floods during rainy seasons temporarily drop the lake’s salinity to levels where it can support salt-loving microbes. Among them is the red Halobacterium, which contains the same red carotenoid pigment found in tomatoes and red peppers. Under the right conditions, Halobacterium thrives, turning the blue Dead Sea pink. Halobacterium has the ability to survive in extreme conditions by repairing its damaged DNA. It has been studied in the search for a cure to cancer and to counter the damaging effects of radiation.
Small pools with lower salinity around the Dead Sea. The actual Dead Sea turns pink only under the right conditions after heavy rains, mostly where the Jordan River terminates. This is becoming a rare occurrence as fresh water is increasingly diverted away from the Dead Sea. Pink water is not to be confused with the red-brown bromine common in Dead Sea brines.