But his first love is a type of marine creature called trilobites that once teemed in Ordovician seas but haven't existed for a long time except in fossilized form.

但是，他最钟爱的是一种名叫三叶虫的海生动物。那种动物一度充满奥陶纪的海洋，但早已不复存在，除了以化石的形式。