哈!新詞 呆若木鼠的新詞是這麼來滴?#貓頭鷹耳朵的奧秘,能聽見人類聽不見的低頻聲音#是耳骨大小不一的猛禽#動物日記 #animals #科普
@動物日記Animal diary
[{'start': '0.000', 'end': '0.633', 'text': 'Do you know why the mouse does not run away'}, {'start': '0.633', 'end': '1.733', 'text': 'when an owl catches it?'}, {'start': '2.666', 'end': '4.200', 'text': "In fact, the mouse can't hear anything"}, {'start': '4.200', 'end': '5.100', 'text': 'because the flight of an owl is'}, {'start': '5.100', 'end': '6.233', 'text': 'almost silent. The'}, {'start': '6.233', 'end': '7.066', 'text': 'leading edge of its wings'}, {'start': '7.066', 'end': '8.866', 'text': 'has a raised comb-like structure that'}, {'start': '8.866', 'end': '10.066', 'text': 'can reduce flight noise.'}, {'start': '10.066', 'end': '10.333', 'text': 'In addition, the'}, {'start': '10.333', 'end': '12.200', 'text': 'surface of its feathers is covered with dense down that'}, {'start': '12.200', 'end': '13.433', 'text': 'can absorb vibration sound waves.'}, {'start': '13.433', 'end': '14.466', 'text': 'Then why does an owl twist its head to see things?'}, {'start': '15.500', 'end': '17.200', 'text': 'Because its eyeballs are cylindrical'}, {'start': '17.200', 'end': '18.466', 'text': 'and fixed by a periosteal ring and'}, {'start': '18.466', 'end': '19.300', 'text': 'cannot rotate.'}, {'start': '19.300', 'end': '20.200', 'text': 'In order to see the prey clearly, it can'}, {'start': '20.200', 'end': '21.733', 'text': "only rotate its entire head. Wouldn't"}, {'start': '21.733', 'end': '23.433', 'text': 'this twisting of the neck break?'}, {'start': '23.433', 'end': '25.233', 'text': 'No, humans only have 7 cervical vertebrae,'}, {'start': '25.233', 'end': '26.733', 'text': 'but owls have 14, which'}, {'start': '26.733', 'end': '28.066', 'text': 'can rotate 270 degrees.'}, {'start': '28.066', 'end': '29.266', 'text': 'Combined with the field of vision of the eyes, they'}, {'start': '29.266', 'end': '31.633', 'text': 'can completely monitor 360 degrees without blind spots.'}, {'start': '31.633', 'end': '33.466', 'text': 'Why are the ear holes of owls so large that you can'}, {'start': '33.466', 'end': '35.133', 'text': 'see the eyeballs inside?'}, {'start': '35.233', 'end': '37.066', 'text': 'This structure can collect more sound waves.'}, {'start': '37.066', 'end': '37.300', 'text': 'In addition, the'}, {'start': '37.300', 'end': '39.066', 'text': 'ears on both sides of the owl are different in size, one high and one low.'}, {'start': '39.933', 'end': '41.133', 'text': 'The owl uses the'}, {'start': '41.133', 'end': '42.433', 'text': 'slight time difference between the two ears when sound waves are transmitted to'}, {'start': '42.433', 'end': '44.133', 'text': 'accurately locate the source of the sound.'}, {'start': '44.133', 'end': '45.033', 'text': 'Then why do people regard'}, {'start': '45.033', 'end': '46.266', 'text': 'it as a mourning bird? It can'}, {'start': '46.266', 'end': '47.466', 'text': 'smell the'}, {'start': '47.466', 'end': '48.133', 'text': 'rotten'}, {'start': '48.133', 'end': '49.833', 'text': 'meat in the body of a dying person and make a warning sound.'}, {'start': '49.833', 'end': '50.733', 'text': 'But in nature,'}, {'start': '50.733', 'end': '51.433', 'text': 'an owl'}, {'start': '51.433', 'end': '53.300', 'text': 'can hunt 1,000 mice in the summer, which'}, {'start': '53.300', 'end': '54.933', 'text': 'is equivalent to protecting a ton of food.'}]