The Otago skink is an omnivorous reptile, which feeds on a wide variety of invertebrates, vegetation and, when in season, soft fruits (4). Occasionally it also consumes small skinks and flower petals (4). Although the Otago skink forages for most of its food on the rocks, particularly areas which are encrusted with lichen that attract a richer abundance of invertebrate prey (2), it must occasionally leave the rocks to find some of its food, such as fleshy fruits and more invertebrates (3), in the surrounding plant life (2).
Female Otago skinks give birth to between two and four young at a time. Otago skinks reach maturity at the age of three or four (2) and are known to live for up to 16 years in the wild (4).
Like most reptiles, the Otago skink depends on its environment to regulate its body temperature. Thus they are often seen lying out on the rock, basking in the sun, and retreat to the cool of crevices when the day grows too hot (3). Lichen encrusted rock surfaces not only provide a source of invertebrate prey, but also offer the rare Otago skink better camouflage against predators (2). Deep rock crevices also provide shelter from predators (2), and should the Otago skink be attacked, like other skinks it can readily discard its tail, giving it a better chance of escaping its predator (5).