Hi guys, unfortunately, they are not fleas (wish that was all.....) they are ticks and if they bite they carry horrendous diseases (some even carry Lymes Disease...which can occassionally be fatal to cats and humans...although rare)....thing is you dont know do you? Have been scanning our bodies (like mad hatters) for bites I have some bites but from being in garden (midges) but am itching all over now. Luckily they have been in separate room and have had no contact with my other cats whatsoever. Dont understand why the Frontline didnt kill them ticks....