There are dolphins almost everywhere in the world. Some live in a specific area of an ocean. Others, like the orca, appear world wide. Coastal dolphins live near the land and, are often seen by people often, while oceanic dolphins live farther in the oceans. Many dolphins have a territory of the ocean were they stay their whole life.
Dolphins live and travel in groups, called shoals.
Dolphins which live in a specific shoal are often related to each other. Sometimes different shoals join together and form a herd. Shoals of more than hundred dolphins have been seen. A dolphin has a streamlined body, which helps him to move through the water quickly. His backfin will keep him in balance, which gives him stability during swimming.