http://www.dailymail.co.uk/news/article-2734601/Hippo-suffers-painful-death-mistaking-tennis-ball-thrown-enclosure-apple-swallowing-it.html
Hippo Maikel died at Frankfurt Zoo after a visitor threw a tennis ball at him

The 39-year-old bull ate the ball and died in 'agony' four days later

An autopsy revealed that the tennis ball blocked his intestine

A special animal crime squad has been ordered to find those responsible




驗屍時發現一個完整網球