Record heatwave kills three lions at Tokyo zoo as South Korea declares national disaster

Tama Zoological Park, Tokyo, Japan

Coverage spread: 2 sources — 1 left · 1 international

Lean ratings via AllSides / Media Bias-Fact-Check. How this works.

Where they agree

  • Three lionesses at Tama Zoological Park in Tokyo died of suspected heatstroke within days of each other in late July/early August.
    Both sources report roughly 18,600 hospitalizations for heatstroke in Japan between July 20-26, with 45 deaths on arrival.
    Both note a zoo spokesperson’s explanation that humid Japanese heat is harder on lions than the dry heat of their native Africa, despite lions’ general heat tolerance.
    Both link the zoo deaths to a broader, record-setting heatwave across East Asia, including a severe crisis in South Korea, and to human-driven climate change.

Where they differ

  • Al Jazeera gives substantial space to South Korea’s national disaster declaration by President Lee Jae Myung and conditions in North Korea; The Guardian mentions South Korea only briefly at the end.
    The Guardian includes more zoo-specific detail, such as the 10-of-16 lions affected, the vet’s finding of dehydration and organ failure, and the zoo’s concrete countermeasures (water sprinkling, ventilation, air conditioners).
    The two sources cite different South Korean death tolls — 19 (Al Jazeera) versus at least 16 (The Guardian) — reflecting different reporting snapshots.
    Al Jazeera closes by widening the lens to wildfires in Greece, Spain, France, and the US and an intensifying El Niño; The Guardian instead closes with Japan-specific context, like adjusted event schedules and its 2030 heat-death reduction target.

What happened at the zoo

Three lionesses at Tama Zoological Park, Tokyo’s largest zoo, died of suspected heatstroke over a five-day span in late July and early August. A three-year-old lioness named Mugi died first, followed by an 11-year-old named Ichigo, and then a 15-year-old named Luena. The zoo said 10 of its 16 lions had shown loss of appetite and reduced activity since mid-July, and several were still being treated when the deaths were announced.

A zoo veterinarian observed dehydration and multiple organ failure in the animals that died, leading staff to suspect heatstroke as the cause. A zoo spokesperson said lions are generally considered heat-tolerant, but the humid heat of a Japanese summer differs from the dry heat of their native Africa, making it harder for the animals to cope. The spokesperson also noted that this year’s heat arrived abruptly once the rainy season ended in late July. The zoo said it is responding by sprinkling water, improving ventilation, and installing spot air conditioners for the remaining animals.

How bad the heat has been across the region

The lion deaths came amid a broader heatwave gripping East Asia. In Japan, fire and disaster management agency figures show about 18,600 people were hospitalized for heatstroke between July 20 and 26, with 45 pronounced dead on arrival. Some areas have hit 40C, meeting the criteria for Japan’s newly designated “cruelly hot day” category. Japan already logged its hottest summer on record last year, with a national high of 41.8C recorded in August in Isesaki, north of Tokyo. The country sees roughly 1,300 heat-related deaths annually and has set a goal of halving that figure by 2030; officials have also shifted the timing of cultural and sporting events, including the World Cosplay Summit in Nagoya, because of the heat.

In South Korea, President Lee Jae Myung declared the heatwave a national disaster and directed officials at a cabinet meeting to support the hardest-hit residents and inspect power systems as air conditioning demand spikes. The Korea Disease Control and Prevention Agency reported a death toll of 19, including 13 people aged 80 or older, with 2,025 heat-related illnesses recorded nationwide since May 15. South Korea’s temperature record was broken three times in a week, topping out at 42.5C in Yangsan on Sunday — the highest ever recorded in the country’s 122 years of weather observation. Lee called for a redesign of the national disaster response system, warning that abnormal weather patterns make continued extreme heat likely.

North Korea, where independent casualty data is unavailable due to restricted media access, issued heat advisories covering much of the country through the week, and state media reported large crowds at water parks in Pyongyang.

The wider picture

The East Asian heatwave is unfolding alongside extreme weather elsewhere: wildfires and evacuations in Greece, high alert for fires in Spain and France, and extreme heat raising wildfire risk in the United States. The UN’s weather agency has warned that a strong El Niño is expected to intensify. Scientists broadly attribute the increasing frequency, duration, and intensity of such heatwaves to human-driven climate change.

How the two accounts compare

Al Jazeera frames the story around the regional scale of the crisis, giving roughly equal weight to South Korea’s national disaster declaration, Japan’s hospitalization figures, and the situation in North Korea, before turning to the zoo deaths and closing with a nod to wildfires in Europe and the US. The Guardian keeps its focus tighter on the zoo itself, including details the other account omits — such as the zoo’s specific mitigation steps (water sprinkling, ventilation, spot air conditioners) and the spokesperson’s remark that the heat hit suddenly once the rainy season ended. The Guardian also references South Korea’s heatwave only briefly at the end, citing a slightly lower death toll of at least 16 rather than the 19 reported by Al Jazeera, suggesting the figures were captured at different moments as the toll rose.

Sources

Featured photo: Brian0918 via Wikimedia Commons (CC BY-SA 2.5)

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