Common minke whale to 20 growth layers in their tympanic bullae, which may correspond to about 15 to 20 years of age. Both sexes can live to about 50 years of age – the oldest in a study of Icelandic minke whales were 42 years for females and 47 years for males, respectively. Common minke whales have been described as ichthyophagous, but their diet also includes pelagic crustaceans and cephalopods and varies by region, season, and year. In the North Atlantic, they primarily eat small schooling fish, demersal fish, and krill. A 2007 study showed that off Spitsbergen they fed almost exclusively on
Creature template Edition game's Dungeon Master's Guide, which features tables to aid in the "random generation of creatures from the lower planes". Subsequent other First Edition handbooks, notably the Monster Manual II, as well as Dragon Magazine, featured additional early monster generation templates. Creature template In the "Dungeons & Dragons" game, a template can be applied to a creature to enhance its abilities or to even create a new type of creature. Templates can be either acquired or inherited. An acquired template can be applied to a creature at any point (assuming it meets the prerequisites for the template), while an inherited