Dolphins are mammals and are some of the smartest animals on the planet. Let's take a closer look at the various features of these wonderful animals.
Interesting facts about dolphins
Dolphins are viviparous. The female carries the cub for about a year and a half, and then very carefully takes care of him. Dolphins are born large about a meter long. Dolphins live relatively long and can live up to 30 years.
An interesting feature of dolphins is that they only sleep “half”, that is, during sleep, one hemisphere of the brain is awake. This allows the animal to surface to take a breath of air.
For orientation underwater, these mammals use special ultrasonic signals - echolocation. And besides this, they use whistling and twittering to communicate with each other. Some scientists even say that dolphins are able to distinguish each other by voice.
Sea and freshwater dolphins
Dolphins are both marine and freshwater. They feed on various small animals. Thanks to the fast speed that they can develop underwater, they are able to catch mollusks, various fish and crustaceans. Many scientists conducted research and found that such a speed (about 40 km / h) they develop not due to their strong muscles, but due towhich are very smart and able to adjust the position of their body in water, making it more streamlined, due to which the speed does not decrease.
Dolphin Training
Dolphins respond very well to training. Dolphins from the genus Bottlenose dolphins are trained in dolphinariums. According to trainers, they memorize tricks the first time, however, for a small fee in the form of fish. There is one interesting story. Beginners - dolphins were placed together with already experienced trained ones, pre-training them during the day. The teams after that they performed poorly.
At night, they heard whistling, chirping, and the next day, beginners could carry out all the commands. It is believed that with the help of whistles they communicated and exchanged information.
Dolphins are not aggressive even in the wild. They can swim at sea to swimmers and thus communicate with them. Probably everyone would really like to meet such cute creatures.
