Oceanic dolphin another indication of animal intelligence. Killer whales have the second largest brain mass of any animal on earth, next to the sperm whale. The brain to body mass ratio in some is second only to humans. Self-awareness is seen, by some, to be a sign of highly developed, abstract thinking. Self-awareness, though not well-defined scientifically, is believed to be the precursor to more advanced processes like meta-cognitive reasoning (thinking about thinking) that are typical of humans. Research in this field has suggested that cetaceans, among others, possess self-awareness. The most widely used test for self-awareness in animals is the mirror
Creature type (Dungeons & Dragons) by Positive energy (whereas Undead are animated or empowered by Negative energy). A dragon is a reptile-like creature, usually winged, and tends to have magical or unusual abilities. An elemental is composed of one or more of the four classical elementals of air, earth, fire, or water. Elementals almost always have the extraplanar subtype. Most natives of the elemental planes are elementals, however there are some exceptions, for example most types of genies are native to the elemental planes, however genies are outsiders. A fey is a creature which usually has supernatural abilities and a human-shaped form. A fey also