These Clever Mammals Share Human Lifespan, Wit and Social Behavior

Threats to Dolphins

Story at-a-glance

  • April 14th is National Dolphin Day. Dolphins are one of three groups of marine mammals that make up the cetacean species, which also includes whales and porpoises. All cetaceans share several physical characteristics, including flippers, blowholes, and tails with flukes

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