Dolphins "hocico de botella" are recognised between them through wheezing that could be considered like their names. Experiments with dolphins in captivity have showed that are capables of teaching, realizing complex tasks and vocalizing sounds similar to words. Some researchers have suggested that for this reason they are able to teach a language and communicate with each other people, although it has not been able to show.
Waves that emit dolphins produce an activation of central nervous system of the person. Sounds that make dolphins when communicate between them underwater have therapeutic effects and people have feelings like peace, joy and high self-esteem. Dolphins increase the motivation. Different elements like water, music and dolphins stimulate the nervous system of the patient and help patient to feel more positive in an atmosphere of fun, playing and teaching. It's a way to help people like Nikki to learn speak.
The European Union has included dolphins "hocico de botella" like protected species and only its capture is allowed for scientifics or education purposes, although there is to poin out that between scientifics purposes there is the military use of dolphins to carry explosive charges againts ships. Military dolphins are trained to achieve military purposes. These dolphins have been used for the EEUU and URSS in war mission like soldiers attacking to divers and ships. These dolphins have found a place in history.