Weddell Seal

The Weddell seal (Leptonychotes weddellii) is a remarkable marine mammal native to the icy waters of Antarctica. Known for its ability to thrive in extreme environments, it is an expert diver and one of the southernmost-ranging seals.

They have a robust body with short, dense fur that is greyish to dark brown and often marked with lighter spots or streaks. Their underside is usually paler, sometimes creamy or silvery.

A rounded head, large eyes, and small fore flippers give them a characteristic seal appearance.

They often live near the edge of fast ice (sea ice attached to the coastline) and maintain breathing holes in the ice by gnawing at them with their teeth.

They are opportunistic predators, primarily feeding on fish, squid, and other invertebrates such as krill and prawns. A major component of their diet is Antarctic silverfish (Pleuragramma antarcticum). They hunt using their excellent underwater vision, even in low-light conditions under the ice.

They can dive to depths of over 600 metres (1,970 feet) and stay underwater for up to 90 minutes. They use their streamlined bodies and strong flippers to navigate beneath the ice while conserving oxygen.

Mating occurs underwater in the austral spring (September to November). After an 11-month gestation period, females give birth to a single pup on the ice in early spring.