Historic & Scenic Sites in and around Washington County, MO by Esther & Gene Carroll History of Washington County Jails & Courthouses by Esther Carroll These links are a part of Carrolls' Corner - lots of Washington County History!
In a humid environment, over 60% of newly hatched fleas can live without a host for 2 months. In a cool, dry environment, only 10% will live without an immediate host. Humidity is the key to flea survival.
The fleas you see on your cat are adult fleas, which are only about 5 percent of the flea population in an environment. The other fleas are scattered about as eggs, larvae or pupae. Adult fleas generally live two to four weeks, although in a hospitable environment they may live up to four months.