What is main animal?

Please provide me with more context! "Main animal" is too vague. What are you referring to?

For example, are you asking:

* What is the main animal in a particular ecosystem? (e.g., the main animal in the Amazon rainforest is the jaguar)

* What is the main animal in a particular story or movie? (e.g., the main animal in The Lion King is Simba)

* What is the main animal that is the focus of a research study? (e.g., the main animal in a study on bird migration is the monarch butterfly)

Once I understand what you mean by "main animal," I can give you a more specific answer.