i would say their intelligence
Yes , dolphins are mammals . They have hair and mammary glands which are most important characters of mammals . They are type of whales .
There is no possible way that recycling would hurt dolphins. in fact, recycling helps dolphins.
since dolphins are mammals, the females do in fact get pregnant and give birth
oxygen is most important use is for breathing
they help people from sharkes
they eat fish
A myth about dolphins is that they do not live as long in aquariums as they do in the wild. The fact about dolphins is that they have a better chance of being healthy and living as long, if not longer, than wild dolphins.
Sound is useful for dolphins to stay with their pack and hear fellow dolphins shout alarums, but sight is also important for finding the surface and escaping said danger.
As a matter of fact, dolphins do have bellybuttons. All mammals have them because that is where their umbilical cord was connected.
the most common dolphins that you see in aquariums are bottlenose dolphins or killer whales,but there are more different kinds of dolphins.
The most important telephone fact is .......that a telephone is used to call people and secondly the telephone saves time by letting people talk with important businesses.
A key fact is just a very important fact. More important than most of the other facts.