in Animals, Fish Most of a sperm whale’s head is filled… by Chirag Chauhan April 18, 2018, 8:27 pm 109 Views Most of a sperm whale’s head is filled with a fatty, yellow tissue called junk. sperm whale Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *Comment * Name * Email * Website By using this form you agree with the storage and handling of your data by this website. *