A worker splashes water on elephants to cool them off at the Karachi Zoo, in Pakistan, on June 24. Caretakers at Karachi's zoo were working to keep animals cool during a deadly heatwave insouthern Pakistan. The human toll from four days of sweltering conditions rose into the thousands. Large animals -- including elephants from Tanzania, white lions, and tigers from Bengal -- have been deeply distressed due to the "unbearable" heat, said Tazeem Naqvi, a director at the facility.
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