Random Riddle: Old as Dinosaurs

A flea.
Flea fossils have been found that were alive over 100 million years ago.
Fleas are parasitic, and suck blood out of mammals.
In the 14th century, the flea was responsible for transmitting the “Black Death” or what is now known as the Bubonic Plague.
Fleas have no wings, however they can jump up to 130 times their own body length.