Simplify the following text for a Grade 14 native English-speaking person.
Original: The reasoning behind this is that if the parents of the hybrid offspring each have naturally selected traits for their own certain environments , the hybrid offspring will bear traits from both , therefore would not fit either ecological niche as well as either parent .
Simplified: The reasoning behind this is that if the parents of the hybrid offspring each have naturally selected traits for their own different environments , the hybrid offspring will bear traits from both , and would not fit either niche as well as either parent .