Like layers of enamel in teeth, otoliths grow in tiny rings, adding a new one each season.

就像层层釉质，耳会呈小小环圈生长，每一季加上新一圈。

The outermost ring suggests when a fish was caught. The otoliths found in Gobero's middens indicate the fish were caught throughout the year.

最外侧一圈表一只鱼遭到捕捉时间。在格伯托贝冢找到耳，这里全年都在捕鱼。

Sereno has found other evidence that implies people lived year-round at Gobero. His teams have collected otoliths, the bony structures from the inner ears of fish.

塞雷诺还发现了别证据，有人常年住在格伯托。他团队收集到耳，这是鱼类内耳骨质构造。