Basic information
Dolphins are mammals. Dolphins are very smart animals. Dolphins are very friendly animals. Dolphins usually stay 15 minutes underwater. Dolphins have a technique called echolocation, this means dolphins use sound to see . The biggest and largest dolphin is the Killer Whale also known as a Orca. All dolphins are warm-blooded. There are 32 species of dolphins. Dolphins can swim up to 260m below the surface. All dolphins can swim up to 5-12 kilometers per hour. The most popular dolphin is the Bottlenose dolphin. Dolphins live up to 20 years old.
Diet
Fish and squid are the main things dolphins eat. Dolphins chase fish into shallow water to catch them easily. They also eat mackerel, herring and cod. Bigger dolphins like Orcas might eat other marine animals like sea lions or sea turtules.
Community
Dolphins live in pods. They talk using clicks and whistles to communicate. They help each other by staying with other dolphins and helping each other. They help swimmers by swimming around them and charging sharks. Some dolphins teach other dolphins to put sponges on their snouts when looking for food. Some male dolphins fight other male dolphins.
Natural Enemies
Humans are one of dolphins enemies. Dolphins don't have alot of enemies, but sharks and whales are a threat to smaller dolphins. Dolphins can have a lot of diseases.
This video is about dolphins swimming in the water. This video is very interesting because you get to see dolphins swimming.