Heatwaves Impair Animal Brain Function and Raise Health Risks

Rising extreme temperatures are increasingly disrupting animal cognition. Research cited from experiments on wild birds in South Africa shows that heat waves reduce learning ability, memory retention and rapid decision‑making, and can trigger heightened aggression in birds, mammals and fish. The physiological stress of higher body temperatures interferes with neural signaling, leading to poorer foraging, predator avoidance and reproductive success, which may cascade through ecosystems.

In Italy, the National Animal Protection Agency (ENPA) warns that domestic pets, especially dogs, face serious heat‑related dangers such as heat stroke, dehydration and paw burns. Recommendations include avoiding walks during the hottest hours, providing ample fresh water, cooling paws with water, never leaving animals in parked cars, using shade structures, and applying high‑SPF sunscreen to vulnerable ear areas. Similar precautions are advised for cats, fish, birds and small mammals to prevent heat‑induced health problems.