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Fleas are small but hardy insects. The active life expectancy of a flea is normally 2 weeks, but they also have an inactive life cycle. Fleas that are alive in cold weather become dormant. They adjust their heartbeat and body temperature to the elements around them and suspend their lives until warm weather. Subzero temperatures will kill some of them.

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Do fleas live in cold temps Say below freezing?

Fleas can survive in cold temperatures, but they are less active in freezing conditions. However, fleas can survive on a host or in sheltered environments where they can stay warm and protected from the cold. It's still important to take measures to control fleas in all seasons to prevent infestations.


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