Is a dolphin hatched from egg or born alive?

Dolphins are not hatched from eggs. They are mammals, which means that they give birth to live young. Dolphin mothers typically give birth to a single calf after a gestation period of around 10-12 months. The calves are born tail-first and are immediately able to swim and breathe. They are nursed by their mothers for several years and learn how to hunt and survive in the wild.