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Rare Hippo Twin Birth at Berlin Zoo Leaves One Undersized Survivor

Twin births in hippopotamuses occur in about 1% of documented cases.

Overview

  • Berlin Zoo said Tuesday that 13-year-old Nala delivered male twins about a week and a half ago, with one newborn dying shortly after birth.
  • The surviving calf weighed 28 kilograms at birth, compared with the species’ typical newborn weight of around 40 kilograms.
  • Zoo staff report close monitoring of nursing and weight gain to ensure the calf’s development.
  • Nala has separated from the group for the early weeks of motherhood, which curators note is normal hippo behavior.
  • The zoo highlighted that hippopotamuses are listed as threatened with increasingly fragmented habitats and sharp regional declines, including across much of the Nile.