Simplify the following text for a Grade 11 native English-speaking person.
Original: The subfamily Deomyinae consists of four genera of mouse-like rodents that were placed in the subfamilies Murinae and Dendromurinae until very recently .
Simplified: The subfamily Deomyinae consists of four genera of mouse-like rodents . These were placed in the subfamilies Murinae and Dendromurinae until very recently .