Answer:

While most dolphins look gray, there are some species with black stripes, spots or black parts.

Even more, there are some species that look like pink.

Dolphins have a streamlined body which has several important and impressive adaptations to swim efficiently in the ocean.

Dolphins are hairless, which is an exception among most mammals, although it can be clearly seen that hair would be inconvenient for swimming.

Other important characteristic of dolphins is their top fin, which is very representative of their anatomy.

 

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