Animals face rising chronic disease rates linked to environmental changes

Animals worldwide are developing chronic human-like diseases at alarming rates, according to new research published in the journal Risk Analysis. The study, led by Antonia Mataragka of the Agricultural University of Athens, documents rising cases of cancer, diabetes, heart disease and joint disorders across domestic, farm and wild animal populations. Researchers attribute this troubling trend primarily to environmental degradation, presenting a concerning picture of how planetary changes are affecting animal health globally.

New Framework for Monitoring Animal Health

The research introduces a novel evidence-based framework designed to enhance surveillance of non-communicable diseases in animals. This model aims to facilitate earlier detection of chronic conditions and guide health authorities as illnesses previously associated primarily with humans appear with increasing frequency across species. Mataragka emphasized that comprehensive data collection for animal non-communicable diseases remains limited compared to human health statistics, creating significant gaps in understanding these emerging patterns.

Domestic and Farm Animals Show Concerning Trends

Recent surveys indicate more than half of domestic cats and dogs now qualify as overweight, contributing to steadily increasing diabetes diagnoses, particularly among felines. In agricultural settings, approximately 20% of intensively raised pigs develop osteoarthritis. Genetic predisposition plays a role in these conditions, especially among selectively bred species, but environmental factors including poor nutrition, limited physical activity and exposure to chemicals appear to be driving the increasing disease prevalence.

Marine and Wildlife Populations Affected

Marine species face similar health challenges, with beluga whales developing gastrointestinal cancers and farmed Atlantic salmon showing signs of cardiomyopathy syndrome. Wildlife inhabiting heavily polluted estuaries contaminated with industrial chemicals demonstrate liver tumor rates reaching 25%. According to researchers, climate change and rapid urbanization are amplifying these threats, with warming oceans and habitat degradation linked to higher tumor rates in sea turtles and fish, while urban heat and air pollution increasingly compromise the metabolic and immune functions of companion animals.