在2019年年底出版的《经济学人》节假日特辑中，有篇名为The mysterious life and times of eels的文章，标题直译是：《鳗鱼的神秘生活与时日》。该文导语写得明白：没人确知鳗鱼如何繁育，对这族群的未来而言，这事要紧。（No one knows exactly how eels reproduce. That matters for the future of the species）
According to Europol, the eu police agency, around 100 tonnes of live glass eels are exported illegally from Europe to China every year. That is 300m baby fish—roughly a quarter of the entire stock of eels that makes it from the Sargasso to the coast of Europe. By numbers trafficked, there is no bigger wildlife crime.