Simplify the following text for a Grade 6 native English-speaking person.
Original: This subfamily is larger than all mammal families except the Cricetidae and Muridae , and is larger than all mammal orders except the bats and the remainder of the rodents .
Simplified: This subfamily is larger than all mammal families except the Cricetidae . It is also larger than all mammal orders except the bats and the remainder of the rodents .