Los Angeles Zoo officials have announced a new policy of separating newborn and adult male chimpanzees after a deadly attack in June, reports CBS.

The incident occurred on June 26, when a seemingly unprovoked adult male chimpanzee killed a three-month-old chimp in front of zoo patrons and employees.

Tuesday, zoo officials delivered a report to the City Council about the conditions of the attack and the actions that will be taken, the Los Angeles Times tells us. Zoo Director John R. Lewis told the newspaper that altercations between chimpanzees are inevitable, and that hours before the attack the adult male in question was seen "smiling...[and] showing no signs of aggression."

Despite the apparent unpredictability of chimp-on-chimp violence, zoo officials believe that isolating newborns from the more pugnacious elders will make for a safer environment, reports the Sacramento Bee.

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  • Chimpanzee Mom and Baby

    Photo courtesy of Los Angeles Zoo/Tad Motoyama.

  • Big Horn Sheep Dad & Baby

    Photo courtesy of Los Angeles Zoo/Tad Motoyama.

  • Buff Cheeked Gibbon Mom & Baby

    Photo courtesy of Los Angeles Zoo/Tad Motoyama.

  • Giant River Otter Pups

    Photo courtesy of Los Angeles Zoo/Tad Motoyama.

  • Sifaka Baby

    Photo courtesy of Los Angeles Zoo/Tad Motoyama.

  • Yellow Footed Rock Wallaby & Joey

    Photo courtesy of Los Angeles Zoo/Tad Motoyama.

  • Markhor Mom & Baby

    Photo courtesy of Los Angeles Zoo/Tad Motoyama.

  • Royal Antelope

    Photo courtesy of Los Angeles Zoo/Tad Motoyama.

  • Spiny Lizard

    Photo courtesy of Los Angeles Zoo/Tad Motoyama.

  • Steenbok Baby

    Photo courtesy of Los Angeles Zoo/Tad Motoyama.

  • Three Giant River Otter Pups

    Photo courtesy of Los Angeles Zoo/Tad Motoyama.

  • Jumping Markhor Baby

    Photo courtesy of Los Angeles Zoo/Tad Motoyama.

  • Giant Otter Pups

    Photo courtesy of Los Angeles Zoo/Tad Motoyama.

  • Big Horn Sheep Mom & Baby

    Photo courtesy of Los Angeles Zoo/Tad Motoyama.

  • Photo courtesy of Los Angeles Zoo/Tad Motoyama.

  • Sumatran Tiger Cub Draped Over Log

    Photo courtesy of Los Angeles Zoo/Tad Motoyama.

  • Sumatran Tiger Cubs Playing

    Photo courtesy of Los Angeles Zoo/Tad Motoyama.

  • Sumatran Tiger Female With Head On Male Cub

    Photo courtesy of Los Angeles Zoo/Tad Motoyama.

  • Sumatran Tigers: Mom & Cubs

    Photo courtesy of Los Angeles Zoo/Tad Motoyama.

Earlier on HuffPost: