What are the nouns in this sentence Aunt Jane has an understanding of the habits of whales?
The nouns in the sentence "Aunt Jane has an understanding of the habits of whales" are "Aunt Jane," "understanding," "habits," and "whales." "Aunt Jane" is a proper noun referring to a specific person. "Understanding" and "habits" are common nouns, while "whales" is a plural common noun referring to a type of animal.