Psychotic disorders are severe mental disorders that cause abnormal thinking and perceptions. People with psychoses lose touch with reality. Two of the main symptoms are delusions and hallucinations.
How many dragonfly species are there? Answer: The actual number of described species of Suborder Anisoptera (dragonflies) at this time is 2,874. The Suborder Zygoptera (damselflies) consists of about 2,698 species, and the Suborder Anisozygoptera contains only 2 species. Thus, there are 5,574 recognized species of odonates at the present time.
Most dragonflies live for about 6 months. At the beginning of their life cycle they are eggs, then they live as larvae or nymphs, and they finally develop into adults. Though most dragonflies don't live too long, there are some larger dragonflies that live for 6 or 7 years!