Sonya chuckled at Sonic's desperation to eat real food, rather than eat a wild animal. That was gonna be one of the many things she would need to teach him, if they were to survive out here. The scientists have concluded that Sonya's intelligence might be around the levels of a genius, considering that she was able to find out the ways of living and surviving. However, they've certainly missed her ability to conjure up an escape plan. 

Just as she was about to take a bite of the cooked food from the box, shuffling was being heard behind her and Sonic. Immediately, the younger hedgehog was quick to prepare himself, but she was not. Just as Sonya was carefully putting down the box, a square punch came to her face, making her go tumbling backwards, and into the wooden wall nearby.