- Adult fleas are 1.5 to 3.3 mm long.
- They are usually dark-colored with tube-like mouthparts for feeding on hosts.
- Fleas are wingless, with long legs featuring a hind pair for jumping.
- Adult fleas can live up to several years.
- Female fleas can lay 5 000 or more eggs in one lifetime.
- Flea bite can cause hair loss, leading to secondary infections when scratching the irritate bite areas.
- Fleas are vectors of pathogens such as the plague.