Dolphins

Dolphins are highly intelligent marine mammals and are part of the family of toothed whales that include orcas and pilot whales.They are found worldwide,mostly in shallow seas of the continental shelves and are carnivores,mostly eating fish and squid.Dolphin coloration varies,but they are generally grey in colour with darker backs than the rest of their bodies.Scientists believe that dolphins conserve energy by swimming alongside ships,a practice known as bow-riding.Most dolphins live long lives.The bottle nose dolphin can live over 40 years and the Orca can live to be 70 or 80.Dolphins are well known for their agility and playful behaviour making them a favourite of wildlife watchers.