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The world's top ten cruise ships
Owning or riding on one of the world's top cruise ships is often a symbol of wealth. Cruise ships have the most complete entertainment facilities, and are therefore popular among the rich and famous. The world's most expensive cruise ships abound, so what are the world's most luxurious cruise ships? -
The world's longest jellyfish: Arctic haze jellyfish tentacles are more than 40 meters long
Those who live by the sea must have seen jellyfish. They are relatively common underwater plankton, floating in a transparent manner, and are a beautiful creature. There are hundreds of different kinds of jellyfish in the world, do you know which is the longest jellyfish in the world?