Simplify the following text for a Grade 8 native English-speaking person.
Original: When the tongue is retracted , the prey is caught on backward-facing keratinous `` teeth '' , located along the roof of the buccal cavity , allowing the animal both to capture and grind food .
Simplified: When the tongue is retracted , the prey is caught on backward-facing keratinous `` teeth '' , located along the roof of the buccal cavity . This allows the animal to both capture and grind food .