Male polar bear kills female polar bear at Detroit Zoo

摘要

A male polar bear killed a female polar bear at the Detroit Zoo when he attempted to mate, officials said."This was completely unexpected, and the Detroit Zoo staff is devastated by the loss of Anana in this sudden andtragic event," said Scott Carter, the zoo's chief life sciences officer.Nuka killed 20-year-old Anana on Monday after being apart for several months."When bears and other large carnivores breed, it is sometimes described in nature as an aggressive encounter,"Carter told WDIV-TV. "It usually involves physical control of the female by the male, which usually includes himholding her by the back of the neck."