Giant Bloodsuckers! Oldest Fleas Discovered• LiveScience
The oldest fleas were five to 10 times larger than today's bloodsuckers, new research finds. But at least they couldn't jump.
These ancient bloodsuckers are the oldest fleas ever found, and the oldest example of bloodsucking parasites in the fossil record, study researcher André Nel of the Muséum National d’Histoire Naturelle in Paris told LiveScience.