In 2000, Kiessling and two colleagues began to study fossils of sea-bottom-dwelling animals.

早在2000年，基斯林和他的两个同事就开始了对海底动物化石的研究。

youdao

Leverkusen won 1-0 at home to Hoffenheim, with striker Stefan Kiessling scoring the only goal in the 67th minute.

CNN: Ribery returns as Bayern are held again

The closest Leverkusen came to scoring was when Stefan Kiessling's second-half effort was cleared off the line by Konstantin Rausch.

CNN: Leaders Leverkusen limp to another draw

Tony Kroos' free-kick found Sami Hyypia, who headed into the path of Kiessling and he volleyed home from close range.

CNN: Kiessling hat-trick lifts Leverkusen