Japan Zoo Reveals First-Ever Lion Deaths From Heat as Summer Temperatures Soar

Three lions at Tokyo’s Tama Zoological Park died after suffering dehydration and multiple organ failure as temperatures approached 39°C, marking the zoo’s first suspected heat-related lion deaths in 62 years. (Credit: Sheba_Also/Wikimedia Commons)

Three lions have died from suspected heatstroke at a Tokyo zoo, marking the first time extreme heat has been linked to lion deaths in the facility's 62-year history.

Mugi, Ichigo and Luena died within six days after suffering dehydration and multiple organ failure during a sudden rise in temperatures. Ten of the zoo's 16 lions became ill, with some losing consciousness or becoming too weak to stand.