The combination of the extreme climate in Antarctica, the species' solitary habits and their lethal reputation makes leopard seals one of the most difficult top predators to study on Earth. Marine ...

Leopard seals are prehistoric, reptilian-looking marine predators often portrayed as scary villains in movies such as "Happy Feet" and "Eight Below," but little is known about their basic biology. The ...

Typical behavior of leopard seal vocalizations—the male will sing a sequence of sounds underwater before returning to the surface to breathe (represented by a "Z") and repeats this cycle for hours at ...