Four years ago, Marie-Christine Cadiergues demonstrated that dog fleas jump higher than cat fleas. Cosmopolite flea fans are probably still gaga over Cadiergues’s report – city folk tend to care about cats and dogs (and by extension, their little passengers) more than about other animals. But a new report by Boris Krasnov compares the jumping abilities of not just two but SEVEN kinds of fleas. …
So begins this week’s Improbable Research column in The Guardian.