Assertion: rat flea | /r/HasProperty | fed on baby mice
Facets:
value: than on their parents
type: OTHER
Source sentences:
text: Although no similar case is yet known among other species of fleas, it has been recorded that rat fleas are less fertile if fed on baby mice than on their parents and that the mouse flea (Leptopsylla segnis) is more prolific if reared on family units rather than on individual adult mice.