Global Warming for dolphins

Two dolphins were noticed in the Baltic Sea. These dolphins are mother and son. This event is unusual and unique. Before it, dolphins were considered to live in warmer water of such seas as the Mediterranean Sea or the Black Sea.
According to scientists this trend is the sign of global warming. The patrol boat found dolphins that were swimming not far from the peninsula Dars.
In fact global warming is very dangerous for dolphins and threatens their life. They have to migrate to seas with colder water going to the north seas of our planet.
Researches of scientists confirm that this process is very dangerous for dolphins because these creatures will have to adapt to new conditions of life and sometimes even to new food. This may cause some changes in the structure of their body.
Ordinary people won't be able to see these changes, but more experienced people will. The structure will change but the general look will be the same.