There are over 2,900 species of snakes ranging as far northward as the Arctic Circle in Scandinavia and southward through Australia. Snakes can be found on every continent except Antarctica, in the sea, and as high as 16,000 feet (4,900 m) in the Himalayan Mountains of Asia.
Schizophrenia symptomsâ¶ are typically separated into 2 categories: Positive symptoms: Feelings or behaviors that are usually not present, such as: 1  Believing that what other people are saying is not true (delusions)  Hearing, seeing, tasting, feeling, or smelling things that others do not experience (hallucinations)
Symptoms of schizophrenia. Changes in thinking and behaviour are the most obvious signs of schizophrenia, but p eople can experience symptoms in different ways.The symptoms of schizophrenia are usually classified into one of two categories â positive or negative.1  positive symptoms â represent a change in behaviour or thoughts, such as hallucinations or delusions.eople often have episodes of schizophrenia, during which their symptoms are particularly severe, followed by periods where they experience few or no positive symptoms. This is known as acute schizophrenia. If you are experiencing symptoms of schizophrenia, see your GP as soon as possible.