海狗有什么特点？
据了解，海狗也称海熊、腽肭兽。[{'character': '据', 'pinyin': 'jv4', 'highest pitch': 9.83, 'lowest pitch': 9.02, 'duration': 0.17, 'prosody hierarchy': 'null'}, {'character': '了', 'pinyin': 'liao2', 'highest pitch': 9.4, 'lowest pitch': 7.63, 'duration': 0.22, 'prosody hierarchy': 'null'}, {'character': '解', 'pinyin': 'jie3', 'highest pitch': 9.02, 'lowest pitch': 3.41, 'duration': 0.33, 'prosody hierarchy': '#3'}, {'pinyin': 'sp1', 'highest pitch': 0.0, 'lowest pitch': 0.0, 'duration': 0.32}, {'character': '海', 'pinyin': 'hai2', 'highest pitch': 11.09, 'lowest pitch': 8.17, 'duration': 0.26, 'prosody hierarchy': 'null'}, {'character': '狗', 'pinyin': 'gou3', 'highest pitch': 9.18, 'lowest pitch': 5.73, 'duration': 0.31, 'prosody hierarchy': '#2'}, {'character': '也', 'pinyin': 'ie3', 'highest pitch': 7.01, 'lowest pitch': 4.57, 'duration': 0.18, 'prosody hierarchy': 'null'}, {'character': '称', 'pinyin': 'cheng1', 'highest pitch': 9.49, 'lowest pitch': 4.57, 'duration': 0.3, 'prosody hierarchy': '#2'}, {'character': '海', 'pinyin': 'hai3', 'highest pitch': 9.47, 'lowest pitch': 4.6, 'duration': 0.29, 'prosody hierarchy': 'null'}, {'character': '熊', 'pinyin': 'xiong2', 'highest pitch': 7.71, 'lowest pitch': 5.05, 'duration': 0.39, 'prosody hierarchy': '#3'}, {'pinyin': 'sp1', 'highest pitch': 0.0, 'lowest pitch': 0.0, 'duration': 0.15}, {'character': '腽', 'pinyin': 'ua4', 'highest pitch': 11.03, 'lowest pitch': 9.25, 'duration': 0.19, 'prosody hierarchy': 'null'}, {'character': '肭', 'pinyin': 'na4', 'highest pitch': 9.25, 'lowest pitch': 6.56, 'duration': 0.22, 'prosody hierarchy': 'null'}, {'character': '兽', 'pinyin': 'shou4', 'highest pitch': 14.14, 'lowest pitch': 6.3, 'duration': 0.28, 'prosody hierarchy': '#4'}]