👉 Dolphin is a marine mammal that belongs to the family Cetacea, specifically the Mystic or Mystic shark dolphin. They are known for their distinctive black and white stripes, long, powerful tails, and ability to swim at speeds of up to 50 miles per hour (80 km/h). Dolphin species can be found in various oceanic regions around the world, including tropical waters, cold lakes, and even some parts of Antarctica.