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The 10 countries with the highest milk production in the world
Milk is a popular drink worldwide and can be found at home all over the world, it is a very important commodity in our daily lives. Milk is rich in various nutrients, such as calcium, which helps to strengthen bones. So do you know which are the countries with the highest milk production in the world? -
The world's highest jumping fish: Atlantic salmon can jump up a 3.7-meter-high waterfall
Fish can do free jumping and flying on the water surface, which is the instinct of fish. However, fish leap out of the water for "high jump" action, not entirely by the role of fins. Fish jump up high, is with the help of the fish's own muscles. Especially the tail muscles of the strong movement caused. The highest known fish in the world is the Atlantic salmon, which is commonly known as "salmon", in fact, its Latin name means "jumper", according to records, the Atlantic salmon once jumped up to 3.7 meters high waterfall. In addition, there are some sailfish and stingrays have jumped to 3 meters. -
The world's highest altitude tunnel: que'er Mountain Tunnel is 4,300 meters above sea level and 12 kilometers long
The world's highest tunnel, built on a 4,300-meter plateau, 12 kilometers long, workers have to breathe oxygen once an hour
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