Sperm whale - Wikipedia, the free encyclopedia
1 Taxonomy and naming 1.1 Etymology 1.2 Taxonomy 2 Description 2.1 Size 2.2 Appearance 2.3 Skeleton 2.4 Jaws and teeth 2.5 Respiration and diving 2.6 Genetics 2.7 Digestive tract 2.8 Circulatory system 2.9 Brain 2.10 Spermaceti organ and melon 2.11 Eyes ....