After their initial surprise at the unlikely discovery of about 550 potamon fluviatile scuttling around the centre of the Italian capital, they also found that the crabs so enjoy their urban environment that they are growing larger than they would in thei
After their initial surprise at the unlikely discovery of about 550 potamon fluviatile scuttling around the centre of the Italian capital, they also found that the crabs so enjoy their urban environment that they are growing larger than they would in thei
对于约有550只溪蟹在义大利首都内四处爬行这个极不可能的发现，动物学家一开始是感到惊讶，他们并发现这些溪蟹享受都市环境，长得比在原栖息地西西里及托斯卡尼都要大。