Naturalistic intelligence is one of the multiple intelligences posited by researcher Howard Gardner in his Theory of Multiple Intelligences. Gardner had originally proposed in 1983 that humans possessed seven areas of intelligence but increased that proposal to ten different areas over time. Naturalistic intelligence is deemed to be a person's interest in and relationship with the "natural" world of animals, plants, and the natural work around them. This modality includes people who feel inherently drawn to working in fields that involve animals, plants, geology, etc. Along with naturalistic intelligence the other intelligence modalities include musical-rhythmic, visual-spatial, verbal-linguistic, logical-mathematical, bodily-kinesthetic, interpersonal, intrapersonal, existential, and moral intelligence.