The health problem does not just affect pets, but all animals worldwide including marine animals. These diseases are noncommunicable and include such problems as cancer, obesity, diabetes, and degenerative joint disease.

Animal scientist Antonia Mataragka of the Agricultural University of Athens conducted the study. While the causes are inconclusive, Mataragka did find that genetics play a part in selectively bred animals such as dogs, cats and livestock which show higher rates of conditions such as diabetes and mitral valve disease.

Environmental influences, including poor diet, limited physical activity, and long-term stress, also shape how and when these diseases appear across species. Other examples are pigs who develop osteoarthritis, beluga whales have documented gastrointestinal cancers and farmed Atlantic salmon experience cardiomyopathy syndrome. Wildlife living in polluted estuaries contaminated with industrial chemicals such as polycyclic aromatic hydrocarbons (PAHs) and polychlorinated biphenyls (PCBs) show liver tumor rates as high as 15-25%. More research needs to be conducted to fully understand what is happening.

Cite This Page:

Society for Risk Analysis. “Animals are developing the same chronic diseases as humans.” ScienceDaily. ScienceDaily, 17 November 2025. <www.sciencedaily.com/releases/2025/11/251116105735.htm>.

Journal Reference: Antonia Mataragka. Beyond Infections: The Growing Crisis of Chronic Disease in Animals. Risk Analysis, 2025; DOI: 10.1111/risa.70130