article_snippet.sent: the sperm whale is the sperm whale.
article_snippet.sent: the sperm whale's life is based on sound.
article_snippet.sent: The sperm whale's life finds food and navigates using sound
article_snippet.sent: and The sperm whale's life communicates and stays in touch with The sperm whale's life family using sound.
article_snippet.sent: Sperm whales are listed as an endangered species under the U.S. Endangered Species Act.
article_snippet.sent: Encounters between sperm whales and ROV's are quite rare.'
article_snippet.sent: It could also be from other sperm whales. '
article_snippet.sent: other sperm whales often jaw each other when playing or socializing. '