Dwarf sperm whale modern day whale. Characteristic of sperm whales, the left nostril is markedly larger than the right, and it has a spermaceti organ on its skull. The brain weighs around . The eyes are adapted for low-light environments. The dwarf sperm whale has 14 to 24 teeth, rarely 26, in the lower jaw that are sharp, slightly curved backwards, and–like other sperm whales–lack enamel. The teeth rarely exceed in length, smaller than those of the pygmy sperm whale. At most, 6 teeth are in the upper jaws, though in modern sperm whales, upper teeth are defunct. Unique to "Kogia", there is
Brain Exercise with Dr. Kawashima where every game will be played while monitoring its effect on the brain of the player. Brain Exercise with Dr. Kawashima The game is structured around a set of 15 minigames which are used in the different game modes. After selecting a profile (there are 3 slots for different users) a cel-shaded 3D Dr. Kawashima will accompany the player when browsing the menus and will explain the minigames. After playing each minigame in any of the game modes, player's performance is rated via a ranking of items found in nature, which includes creatures such as plankton, a whale or a