* "The humpback whale used its massive tail to propel itself through the water." (referring to the whale's tail)
* "Its powerful vocalizations can be heard for miles across the ocean." (referring to the whale's sound)
* "Its migration patterns take it across vast distances." (referring to the whale's journey)
Remember that "its" is a possessive pronoun and doesn't have an apostrophe. It shows ownership or belonging to something.