284. The longest TV play in the world is the famous American soap opera 285. gorillas, chimpanzees and bonobos belong to the family Homo 286. Water expands and shrinks 287. Air is liquid at minus 190 ℃ 288. The dodo is the first animal to be extinct due to human activities 289. You...
389. There are more than 100 million microorganisms in human mouth 390. The real vampire is actually a porphyrin patient 391. Rabbits are sexually mature about 8 months after birth 392. Farouk, the last king of Egypt to die 393. Turn the shark over and make it belly up, there is a ri...