50.5 MB (2.4 MB compressed)
3424 x 5150 pixels
29.0 x 43.7 cm ⏐ 11.4 x 17.2 in (300dpi)
MASSIMO BREGA, THE LIGHTHOUSE / SCIENCE PHOTO LIBRARY MASSIMO BREGA, THE LIGHTHOUSE / SCIENCE PHOTO LIBRARY
Salt lake research, Senegal. Microbiologist Bernard Oliver holding up a sample of water from Lake Retba (the 'Rose Lake'), a salt lake in Senegal. The pink colour of the lake is due to extremophile bacteria that are found in its waters. In this case, the bacteria are halophiles, thriving on the high salt concentration that ranges from 80 to 300 grams per litre. Oliver works for the French Development Research Institute (IRD), which studies the relationship between humans and the environment.
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