So it was a big surprise to discover wild leopard seals feeding alongside one another while eating king penguins at South Georgia, a remote island in the southern Atlantic Ocean. On top of this ...

Leopard seals had always been considered an Antarctic species, residing predominantly within the pack ice. Births were always thought to occur on the ice flows surrounding the continent.

The sample was submitted by a vet who had been monitoring a sickly-looking leopard seal on Oreti Beach, Invercargill, on New Zealand's South Island. The device was in good condition "considering ...