than it would have otherwise省略了什么?怎么理解otherwise?
Social learning in animals is said to occur when direct or indirect social interaction facilitates the acquisition of a novel behavior.It usually takes the form of an experienced animal (the demonstrator) performing a behavior such that the naïve animal (the observer) subsequently expresses the same behavior sooner,or more completely,than it would have otherwise.One example of social learning is the acquisition of preferences for novel foods.