The only continent without a native reptile is Antarctica. This typically inhospitable and frigid landmass lacks the biodiversity seen on other continents due to its extreme climate and isolation. The harsh conditions, including freezing temperatures and a lack of suitable habitats, means reptiles, which are typically cold-blooded and require warmer environments for survival, cannot thrive there. In contrast, other continents support various reptilian species, adapting to diverse ecosystems ranging from deserts to rainforests, highlighting the unique ecological characteristics of Antarctica.