1. Dolphins come in various colors, including gray, white, and black, while porpoises are typically shades of gray with darker backs.
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2. Dolphins inhabit both oceanic and freshwater environments, while porpoises are primarily found in coastal waters and estuaries.
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3. Dolphins exhibit playful and sociable behavior, often interacting with humans and other marine animals, whereas porpoises are generally more shy and solitary.
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4. Dolphins are generally larger than porpoises, with some species reaching lengths of up to 30 feet, while porpoises typically range from 4 to 8 feet in length.
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5. Dolphins tend to have longer lifespans than porpoises, with some species living up to 50 years or more in the wild, while porpoises generally live around 15 to 20 years.
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6. Dolphins undertake long-distance migrations, traveling hundreds or thousands of miles between feeding and breeding grounds, whereas porpoises have more localized movements.
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7. Some dolphin species are threatened or endangered due to habitat loss, pollution, and other human activities, while porpoises generally have more stable populations.
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