Fact 1: Like bumThe dolphins love to swim following the boat speed or jumping in front of and behind the speed boat. They swim as fast speed boat. Pacific white dolphins can swim at speeds around 28 km / hour. When following the boat speed, they are even faster. How do they do? Speed boat to create waves that push water upward.The dolphins swim in the waves and go with the flow created by speed boat. So, the dolphins do not need to expend energy to swim, but just ride with the flow.
Fact 2: NoiseThe dolphins use sound to "see". They give voice and listen to the reflections to look for food and navigation. When hunting fish, dolphins sound very noisy, making a small fish into "kelenger".
Fact 3: Foot BonesMillions of years ago, dolphins had legs. Scientists see there are two pieces of the pelvis within the framework of a dolphin. Maybe it was the former leg bone. Some scientists suspect dolphin ancestors walked on land.
Fact 4: Dental RuncingIf the dolphins have a dentist, a doctor must be busy. Several species of dolphins have teeth more numerous and longer than the crocodile. There are species of dolphins that have long teeth as many as 250 pieces. But dolphins do not like to bite humans.You never read the news there is a dolphin bite humans, right?
Fact 5: Partnership CompactSometimes thousands of dolphins hunting together. They marched encircle prey. The area is surrounded by wide, then scaled down so that the prey to confusion, and then eaten.
Fact 6: Helps FishermenThe dolphins are often crowded around the fishing boat while jumping. They guide the fish into the nets of fishermen. In Brazil, bottlenose dolphins alert when fishing nets were full of fish.
Fact 7: NicknamesDolphins communicate with the "whistle" and the "name" to identify one another. Some scientists suspect that dolphins have a special call sign and use a special greeting when parting with his friend.
Fact 8: Midwife AttendantWhen a parent about to give birth dolphins, a dolphin play like a midwife, which help guard and labor. After the baby dolphin is born, the midwife to help care for baby dolphins.
Fact 9: Like HumorLike humans, dolphins seem to like to joke. A dolphin named Ake, asked to help clean the pond. He took dirt in the form of leaves or pieces of objects, and then delivered to the coach.After the dirt in the pool runs out, the dolphins make their own. he was peeling paint on the pool, then delivered to the coach, laughing.
Fact 10: Life in FreshwaterMost species of dolphins live in the sea. However, there are five species of dolphins that live in watery river rapids. Freshwater dolphins can be found in South Asia, the Yangtze River (China) and the Amazon and Orinoco rivers (South America).
Fact 11: Dolphins Sleep Next to EyeVision system is amazing. When compared with human vision, the human eye can not focus on the water. Our vision will be blurred. Dolphin eyes are like a powerful camera that allows them to be able to see clearly in the land and in water. It is necessary for the dolphins. Each time you come to the surface, dolphins careful attention to the movement of birds flock around them.Because, in place of the birds have gathered together a collection of fish. Several species of dolphins have to rise to the surface to breathe every 20 to 30 seconds. Dolphins berisitirahat with only half of their brain activate, and his eyes open sebelah.Lumba dolphins are very aware of this, and use it to find prey easily. Design special eye dolphins also protect their eyes from the sea water dolphin asin.Setiap eyes can focus on a different point at the same time. Therefore, a dolphin can look forward with one eye to determine the direction of swimming while in case of danger with the other eye. If necessary, the dolphins can close one eye and half his brain mengisitirahatkan.After a while, he did the same change in the eye and the other half of his brain. During 8 hours, both sides were conscious brain.Then the left side will sleep for 8 hours. After the sides were built, the right side will sleep for 8 hours.
Source : jelajahunik.blogspot.com
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