Three female lions have died of suspected heatstroke at a Tokyo zoo following weeks of extreme temperatures, marking the first heat-related lion deaths in the facility's six-decade history.
Three female lions aged between 3 and 15 years old have died at Tama Zoological Park in Hino, Tokyo, succumbing to conditions brought on by prolonged extreme heat that gripped the region beginning in mid-July. The deaths occurred between Tuesday and Sunday, with autopsies revealing that all three animals suffered from dehydration and multiple organ failure consistent with heatstroke.
The extended period of extreme temperatures has affected multiple animals at the facility. Ten of the zoo's 16 lions developed concerning symptoms including appetite loss and reduced activity levels, necessitating medical intervention. Zoo officials made the decision to suspend public viewing of the lions on July 23 as their health conditions deteriorated. Among the surviving lions, three animals—one female and two males—remain in poor condition and continue to receive ongoing treatment.
This incident represents a significant moment for the facility. According to a Tokyo metropolitan government official, Tama Zoological Park has never previously recorded a lion death related to heat despite housing and breeding lions since 1964. The zoo's lion collection currently consists of five male and 11 female lions ranging in age from 1 to 20 years old.
