Staff and veterinarians at the Bioparco di Roma are preparing frozen treats for animals to combat extreme heat [1].

These cooling measures are critical because the "Pluto" anticyclone has brought exceptionally high temperatures to the region, creating hazardous conditions for the zoo's residents [1].

The zoo staff creates a variety of popsicles tailored to the dietary needs of different species. Depending on the animal, these treats consist of fruit, vegetables, meat, or fish [2]. In some instances, the staff also incorporates yogurt into the frozen mixtures [3].

This practice serves as a form of environmental enrichment. By providing these treats, the zoo aims to keep animals hydrated and cool while stimulating their natural behaviors during a period of environmental stress. Animals such as tapirs and capybaras have been among those receiving the frozen snacks [2].

Reports of the initiative surfaced during a heatwave in early July 2025 [2, 3]. Specifically, documentation of these efforts was published on July 3, 2025 [3], and July 4, 2025 [2].

The use of diverse ingredients ensures that both herbivores and carnivores receive appropriate nutrition while benefiting from the cooling effect. The veterinary team monitors the animals to ensure the temperature adjustments are effective against the oppressive heat generated by the anticyclone [1].

“Staff and veterinarians at the Bioparco di Roma are preparing frozen treats for animals to combat extreme heat”

The implementation of dietary cooling measures at the Bioparco di Roma highlights the increasing necessity for zoological institutions to adapt to extreme weather events. As anticyclones drive temperatures to dangerous levels, traditional shade and water sources may be insufficient, requiring active interventions like environmental enrichment to prevent heatstroke and maintain animal welfare.