As autopsies have uncovered, these dead river dolphins had one problem in common: there was no food remaining in their digestive tract. Although the precise cause of death remains uncertain, expert analysis has uncovered three possible causes of death: infectious disease, poisoning, or starvation.
尸体解剖发现，这些死亡的江豚大多有一个共同特点：消化系统里没有任何食物残留。尽管死因尚未明确，但专家分析，导致江豚死亡的原因可能有三个：感染传染性疾病、中毒、饿死。图为4月14日，新华联富润公司员工将湖南省岳阳市洞庭大桥以南水域死亡的江豚抬上岸。