求翻译：海豚是体型较小的鲸类，共有近62种，分布于世界各大洋，主要以小鱼、乌贼、虾、蟹为食。海豚是一种本领超群、聪明伶俐的海中哺乳动物。是什么意思？

Dolphins are smaller cetaceans, there are nearly 62 kinds, the distribution of the world's oceans, mainly fish, squid, shrimp, crab-eating. The dolphin is a skill superior, intelligent sea mammals.

Dolphins are relatively small in size, a total of almost 62 different types of whales, the world's oceans, mainly distribution with fish, squid, shrimp, crab-eating. At the dolphin is a kind, clever Maria's ability in the sea mammals.

The porpoise is the build small whale class, altogether has the near 62 kinds, distributes in the world various oceans, mainly take the small fish, the cuttlefish, the shrimp, the crab as the food.The porpoise is one kind of ability outstanding, in the intelligent clever sea the mammal.

Dolphin is a smaller whales, there were nearly 62, distributed in all oceans of the world, mainly to feed on small fish, squid, shrimp, and crab. Dolphin is a skill in superior, bright sea mammals.