Recent research from Northwestern University has revealed that snow flies possess unique adaptations that allow them to thrive in sub-zero temperatures, unlike most insects. These wingless insects generate their own body heat and produce antifreeze proteins similar to those found in Arctic fish, enabling them to remain active in frigid conditions as low as -6°C (21.2°F). The study, published in Current Biology, highlighted that snow flies are not merely surviving the cold but are specially evolved to prefer snowy environments. Scientists sequenced the fly’s genome and discovered a previously unidentified set of genes linked to heat production and antifreeze capacity. The findings may have broader implications for understanding how various organisms endure extreme conditions and could inform advancements in protecting biological materials from cold damage.
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Link to original article source: https://news.northwestern.edu/stories/2026/03/some-like-it-cold-snow-flies-create-their-own-heat-to-avoid-freezing
