Its more natural and doesn't have side effects
I believe the answer your looking for is they hang upside down all the time this is one of their survival skills! Hope this helps!
Answer:
.B) You would place newborn curly-whiskered mud rats with bald mud rat parents and place newborn bald mud rats with curly-whiskered mud rat parents. Finally, let some mud rats of both species be raised by their own species. Then you would compare the outcomes.
