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Frigid Antarctica Loaded with Viruses

Antarctica's icy lakes are home to a surprisingly diverse community of viruses, including some that were previously unidentified.

At first glance, Antarctica's freshwater lakes don't seem very hospitable to life. They remain frozen for a good nine months out of the year, and they contain very few nutrients. Some of these lakes have little animal life and are dominated by microorganisms, including algae, bacteria, protozoans and viruses.

With few animal and microbial predators around, viruses likely play an important role in controlling the abundance of other microorganisms, the researcher say. However, these viruses have been historically hard to study since many cannot be grown in a laboratory. But thanks to new genome sequencing technology, scientists can identify viruses without needing to grow them.
 
 

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