Zurich Zoo euthanises ten healthy geladas to curb troop aggression

Zurich Zoo has made the decision to euthanise ten healthy geladas from its Semien Mountains enclosure, citing rising tensions and limited relocation options as key factors. The groupme of geladas, ranging in age, were put down despite being in good health and actively socialising within their harems. Their removal follows concerns over increasing aggression within the 48-strong troop. Zoo authorities determined that keeping the group intact would risk further conflict. Space constraints in other European zoos ruled out relocation. As a result, the enclosure now houses 11 geladas, with the rest of the group remaining under observation. The euthanised animals' bodies were donated to scientific research. The decision has left the Semien Mountains exhibit noticeably quieter. Staff confirmed the move was purely for the welfare of the surviving group. The zoo's action reduces the troop to a more manageable size. Researchers will now study the euthanised geladas to better understand their behaviour and social structures. No further changes to the group are currently planned.