Final answer:
The correct word to complete the sentence is 'corren'. It is the third-person plural form of the verb 'correr', meaning 'to run' in Spanish.
Step-by-step explanation:
The correct word to complete the sentence is corren.
Corren is the third-person plural form of the verb correr, which means "to run". In the sentence, it indicates that the animals run towards the jungle.
For example, if we say "Los tigres corren a la jungla", it means "The tigers run to the jungle".
Learn more about Completing a sentence in Spanish