Heatwaves Drive Dangerous Health and Behavioral Changes in Animals

Intensifying heatwaves are causing severe health risks and erratic behavior across domestic and wild animals. In France, veterinarians warn that extreme temperatures can lead to lethal heatstroke in pets and companion animals, urging owners to watch for rapid breathing, excessive salivation, lethargy, tremors, loss of balance, and dry hot skin, and to provide immediate cooling and hydration.

Research reported by Knowable Magazine highlights similar cognitive and behavioral disturbances worldwide. Dogs become more aggressive, chamois engage in more fights, and birds such as the bi‑coloured cratérope in South Africa struggle to solve simple tasks under high heat. Behavioral ecologist Amanda Ridley notes that these impairments reduce animals' ability to feed and evade predators, threatening their survival as heat waves become more frequent due to climate change.