The dolphins are a social group that loves people and lives only in swarms. It is fun and loves playing. It may harass the marine animals that are present with it just for fun and entertainment. They may also establish a friendship with children and play with them

 As we mentioned earlier, dolphins love to live in swarms, love surfing, Play and play with seaweed, sea birds and sea turtles, interact well with swimmers.

Dolphins breed  by birth, where the duration of pregnancy is eleven months, and then the mother continue to breastfeed its baby for one year.


Dolphins are characterized by smooth and spindle, which makes it easy to swim at a very high speed. And depends on determining directions on the echo, where there is in her head a round member called Melon which is responsible for determining trends, Dolphins live for long ages up to 250 years.Dolphins have the ability to hear sounds, they can hear the sound vibrations at a rate that exceeds the human ability to hear dozens of times.

 It also has an acute vision and a high level of touch ,but lacks a sense of smell.  If they are in danger, they make a sound like a whistling sound to the other dolphins.

Although dolphins contain hair follicles, they contain only a few hairs on the beaks. The dolphins have only one lung, so they get oxygen from the air as they go out to the surface of the water, breathe in oxygen, then sink into the depths again. It lasts for long periods under water and it breathes in a voluntary manner.

One of the characteristics of the dolphins is that the brain is divided into two parts so that one part sleeps and the other remains to control the process of involuntary breathing and to be careful of the dangers and threats that may surround it, and sleep and one eye is open, but it is observed that the dolphins living in houses in captivity sleep completely and close both eyes .

There are more than 35 species, or types, of dolphin. They are divided into two groups: true dolphins and river dolphins. True dolphins live throughout the world in either salt water or freshwater. The most widespread species are the common dolphin and the bottlenose dolphin. River dolphins live only in South America and Asia. They prefer freshwater.

Most dolphins are 7–10 feet (2–3 meters) long, but some species can reach a length of 13 feet (4 meters). Dolphins have smooth, rubbery skin. They are usually colored in some mixture of black, white, and gray. They have two flippers, or fins, on their sides, as well as a triangular fin on the back. A dolphin must come up to the water’s surface to get air. It breathes through a single nostril, called a blowhole, on the top of its head.

Dolphins are known for being intelligent and playful. They live together in groups, called schools. They use sounds to communicate.

About 10 to 12 months after mating, a female dolphin gives birth to a single baby, or calf. The mother nudges the newborn calf up to the surface so that it can take its first breath. Some types of dolphin may live for 30 years.