67% of captive elephants have foot pathology from standing on hard surfaces

In North American zoos, 67.4% of elephants (145 out of 215 sampled) had at least one foot abnormality, with nail pathologies in 92.4% of affected animals. Foot disease is considered the single most important health problem of captive elephants, and chronic, unresponsive foot conditions are a leading reason elephants are euthanized in captivity. In the wild, elephants walk 10-20 miles daily over varied natural terrain that naturally wears and conditions their foot pads. In zoos, they stand for hours on concrete, compacted soil, or other hard artificial surfaces that cause abnormal nail growth, abscesses, cracks, and infections. Arthritis was reported in 36% of surveyed zoo elephant populations. This matters because these are not cosmetic issues — they cause chronic pain that fundamentally degrades the animal's quality of life for years or decades, and ultimately shorten lifespan. The problem persists because retrofitting enclosures with appropriate substrates is expensive (often $1M+), and many facilities built their elephant exhibits decades ago with concrete infrastructure that cannot be easily replaced.