One for Two

Mexico City has a population of 973,299 persons. Last week its Health Department completed a dog census, reported 500,000 dogs.

Milwaukee Bears

In Industry, N. Y. last month two pet bears named Andy & Amos were shot to death because one of them had killed a child (TIME, Oct. 24). Last week Director Edmund Heller of Milwaukee's Washington Park Zoo was concerned about press reports of a bear-killing in his zoo. Experimenting with groups of animals in large open dens Director Heller had placed together a pair of black bears, a pair of grizzlies, a pair of polar bears and a pair of wolves. All were young. Frolicking in their pool one day, the polar bears playfully began ducking one of the black bears. They jumped upon it, held it under water, held it there so long that it died. The Associated Press reported that the polar bears had murdered their denmate, that the other animals had "snarled and howled, leaping and tearing at the kill." Exclaimed Director Heller: "The cubs were ducking the black bear as boys do in a swimming hole. Sometimes the boys drown. . . . We are not going to start shooting animals on suspicion that they are killers."

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