Based on the section "Zoos and Conservation," what is
 the author s viewpoint about the role of zoos in
 conservation efforts?
 Zoos are critical for
 conserving endangered
 animal populations.
 Zoos can
 lower the number of endangered
 species only by working with other zoos.
 •
 The efforts of zoos have led to a decrease in
 the
 threats animals faco in the
 wild.
 •
 The efforts of zoos should be dedicated only
 to the conservation of endangered species.