Even viruses are prey for some creatures.
Viruses have long been thought off the menu for almost all organisms, but a new study shows that viruses might be a delicious meal more often than once thought. Researchers have found that some animals have learned to eat certain viruses and use them for food and energy.have discovered that a species of Halteria—microscopic ciliates prevalent in freshwater habitats worldwide—can consume a sizable number of infectious chloroviruses.
DeLong knew how chloroviruses could become entangled in a food web. The ecologist collaborated with Van Etten and virologist David Dunigan in 2016 to demonstrate that chloroviruses can only access algae typically covered in a genus of ciliates called Paramecia when tiny crustaceans devour the Paramecia and expel the newly exposed algae.
DeLong would look through the drops after 24 hours for any indication that any species appeared to be having fun with the chlorovirus—that even one species was treating the virus more like a snack than a threat. He located it in Halteria.
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