Here's why:
* Ocean Temperature: Dolphins are generally warm-blooded creatures and prefer warmer waters. They are less common in very cold polar regions.
* Food Availability: Dolphins rely on specific prey, such as fish and squid. Their distribution is influenced by the presence of these food sources.
* Specific Species: Different dolphin species have different ranges. Some are found in tropical waters, while others prefer temperate zones.
Where Dolphins Are Found:
* Atlantic Ocean: Both the North Atlantic and South Atlantic are home to many dolphin species.
* Pacific Ocean: From the warm waters of the tropics to the cooler regions, the Pacific Ocean supports a diverse range of dolphins.
* Indian Ocean: This ocean also harbors various dolphin species, especially in the tropical areas.
* Arctic and Antarctic Oceans: While some dolphin species can be found in the colder waters of these regions, they are less common and generally stick to the edges of the ice pack.
Overall, while dolphins are found in most of the world's oceans, their distribution is not entirely uniform. They are more common in warmer waters where their preferred food sources are plentiful.