Fleas are wingless insects (1/16 to 1/8-inch (1.5 to 3.3 mm) long) usually dark with tube-like mouths used to extract blood from their hosts. They have long hind legs used for jumping long distances; they a capable of jumping vertically up to 7 inches (18 cm) and horizontally up to 13 inches (33 cm) relative to their size they are the best jumpers of all known species in the animal kingdom.
A flea’s primary goals are to find blood and reproduce. Most fleas have a life span of just one year, but they can live several years under the right conditions. Fleas are capable of laying over 5000 eggs in their lifetime.
Getting rid of fleas in the home takes great patience, since for every flea found on an animal, there is the possibly thousands more developing in the home.