Original: The jaws of therapsids are more complex and powerful , and the teeth are differentiated into frontal incisors for nipping , large lateral canines for puncturing and tearing , and molars for shearing and chopping food .
Simplified: The jaws of therapsids were differentiated into frontal incisors for nipping , large lateral canines for puncturing and tearing , and molars for shearing and tearing , and molars for shearing and chopping food .