Yet every animal, including the predator, has its place in natures grand design. Predators help maintain the health of their prey species by eliminating the diseased, young, old and injured. Predators like the mountain lion and the wolf help to keep the deer herds healthy. Occasional loss of livestock must be weighed against the good these animals do in maintaining the balance of nature.
26. In North America, the number of wild animals has reduced most greatly mainly 112
because_______.
A. the birds, mammals and fish there are most predators
B. the development there has been at the highest pace
C. only a few species still live in the world
D. many species have been put on the endangered species list
27. The first European settlers killed predators chiefly in order to_______.
A. eat their meat B. protect themselves
C. please the Federal government D. protect their livestock
28. Some animal species are in danger of disappearing altogether from the earth as a result of_______.
A. peoples superstitious attitude
B. peoples dislike of some animals, such as bald eagle
C. peoples hunting games
D. the self-killing of the predators
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