Dolphins are mammals live one in the ocean and have a close relationship with whales. Nearly 40 dolphins under 17 spent living in the ocean, and few live in the great rivers of the world. Dolphins like to live in the coastal area and the bay. The size of the dolphin: minimum of 50 kg and 1.2 m long, up to 8200 kg largest and 10 m long. Dolphins are meat eaters and mainly eat fish and squid. Dolphins give birth every 2 years and the period from 11 to 12 months. The lifespan of a dolphin from 25 to 65 years and life expectancy can be extended. Dolphins are useful animals and are intelligent animals so we should not hunt them.
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