We humans tend to cringe at winter temperatures. We put on extra layers, crank up the thermostat, and wait impatiently for the tell-tale drip of spring thaw. However, there are plenty of tiny organisms all around us that aren’t just biding their time; they’re thriving in the bitter cold. If you could listen to as well as watch them under a microscope, you wouldn’t hear a single complaint about the temperature.
Psychrophiles, literally “cold lovers,” are organisms adapted to live at extremely cold temperatures. These are single-celled life forms, most often bacteria, but also blue green algae, yeasts, and fungi that can grow at temperatures as low as -13 degrees. » Continue Reading.