What is the only continent without any native reptiles?

Antarctica is the only continent without any native reptiles. Modern non-bird reptiles—snakes, lizards, turtles, crocodilians, and tuatara—occur on every other continent, but none naturally inhabit Antarctica today.

The main barrier is the continent's extreme cold. Reptiles are ectothermic, meaning they rely heavily on external heat to regulate body temperature. Antarctica's freezing climate, long winter darkness, and limited terrestrial food webs make it unsuitable for established reptile populations.

This does not mean Antarctica has never had reptiles in its geological past. When the continent was part of warmer Gondwana, reptile relatives and other tetrapods lived there. Fossils from the Triassic include Antarctanax, a small archosauriform discovered in the Transantarctic Mountains.

The wording “native” matters: visitors could theoretically transport a reptile to an Antarctic research station, but that would not create a native population. Antarctica does support many marine animals and invertebrates, while its terrestrial vertebrates are largely absent.