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Rio de Janeiro's zoo cooled animals with frozen treats during a 40°C heatwave, keeping open despite a Level 3 alert.
On January 13, 2026, Rio de Janeiro’s BioParque zoo gave animals frozen treats like watermelon popsicles, frozen fruit, and species-specific meals including ground chicken and blood to combat extreme heat exceeding 40°C (104°F).
The initiative, part of routine animal care during heatwaves, aimed to support hydration and thermal comfort, with jaguars and monkeys observed retrieving treats from water tanks.
A Level 3 heat alert was in effect, yet the zoo remained open, drawing visitors who praised the effort.
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El zoológico de Río de Janeiro enfrió a los animales con golosinas congeladas durante una ola de calor de 40 ° C, manteniéndose abierto a pesar de una alerta de Nivel 3.