Dolphins are marine mammals are very intelligent, besides the natural system that complements his body is very complex. So much technology is inspired by the dolphins. One example is the skin of a dolphin that is able to minimize friction with water, so dolphins can swim with little water resistance. It is used by swimmers to design a dolphin-like swimsuit.
Dolphins have a system used to communicate and receive stimuli called sonar systems, this system can avoid objects that exist in front of the dolphins, so avoid the impact. This technology was then applied in the manufacture of submarine radar. Dolphins are mammals because the dolphins are mammals. They live in the sea and rivers throughout the world. Dolphins are relatives of whales and dolphins. There are more than 40 types of dolphins. And dolphins can help humans trapped in the middle of the sea.
@rahmed