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 type (Dungeons & Dragons) Ooze, Plant, Shapechanger and Undead creature types were converted to keywords in 4th edition, as were many subtypes. Fifth edition's approach to creature types is similar to third edition's. The outsider type has been split into celestials and fiends, animal and vermin type have been combined into beast type, and several types have been removed (magical beast, monstrous humanoid, etc.) and the catch-all monstrosity type has been added. Creature type (Dungeons & Dragons) In the "Dungeons & Dragons" fantasy role-playing game, creature types are rough categories of creatures which determine the way game mechanics affect the creature. In the 3rd