Creature type (Dungeons & Dragons) animals despite their real-world bases being more closely related to vermin type creatures. Creatures deemed inconsequential by DMs or designers are not given any creature type at all, instead being treated as "set dressing" unless a specific game effect targets such non-creatures. Examples include actual-sized spiders, sparrows, fleas, worms, shellfish, and mice. "Swarm" type creatures are occasionally written to represent such otherwise nonthreatening creatures if they were to group together by some force of magic within the game world. Under the rules of D&D, animal type creatures do not have an Intelligence score higher than 2. When a designer makes
Blood type personality theory of brain cells. These studies are not yet fully confirmed, except that the ABO antigens are expressed in early embryos. There are also many psychological or statistical approaches to studying the correlation between blood type and personality, but these are not yet confirmed. Quite a few academic researchers consider Furukawa and Nomi's studies as inaccurate because they used neither statistically appropriate measures nor methods and had not shown sufficient evidence, i.e. random sampling, incorrect usage of statistical tests. For example, Kengo Nawata, a Japanese social psychologist, statistically analyzed three data sets of over 10,000 Japanese and American people in total.