The giant panda eats shoots and and leaves.

The giant panda eats, shoots, and leaves.

 

Grammar and Punctuation

Rule 1. Possessive nouns
Rule 2. Commas after introductory word groups
Rule 3. Commas between independent clauses
Rule 4. Semicolon
Rule 5. More commas: parenthetical phrases
Rule 6. Agreement in number
Rule 7. Capitalization
Rule 8. Active verbs
Rule 9. Wordiness