Where are dolphins located?
Dolphins have colonized all oceans and seas of the planet, from polar to tropical regions, true mammals they must get oxygen from air and not from water such as fish, their infants are born underwater and must be brought up to the surface immediately to survive. Another dolphin is often present to help the mother when birth is taking place. Presence or non presence of dolphins is a good indication of the state of the seas in many parts of the world. Very common in some places twenty years ago it has disappeared since. In other regions it is coming back because of man efforts to de-pollute. Climate or change in currents or sea temperature can also make dolphins disappear or come back after many years, the most remarkable case of this is the Monterey Bay in California where the Risso Dolphin reappeared in 1970 after a non presence of 70 years.
