Stephen Dalton / Cat flea {Ctenocephalides felis} jumping from cat fur, UK

Stephen Dalton / Cat flea {Ctenocephalides felis} leaping sequence, multiflash image

Stephen Dalton / Cat flea {Ctenocephalides felis} jumping, UK, (0.000017 seconds exposure)

Anup Shah / Flea {Pulicidae} amongst fur of Cheetah {Acinonyx jubatus} Masai Mara GR, Kenya

Paul D Stewart / Illustration of human Flea (Pulex irritans). 1744 August Johann Roesel von Rosenhof with copperplate art and engraving with handcolouring. From 'Der monatlich-herausgekommenen Insecten-Belustigungen E...

Paul D Stewart / 1744 illustration of a flea by August Johann Roesel von Rosenhof; copperplate art and engraving with handcolouring. From 'Der monatlich-herausgekommenen Insecten-Belustigungen Erste Sammlung' (Insect...

Kim Taylor / Bird flea (Siphonaptera sp) on the feather of a House Martin (Delichon urbica) Surrey, England