Researchers filmed a 10-to-13-foot sleeper shark off the South Shetland Islands, in what may be the first recording of the species that far south.

Researchers filmed a 10-to-13-foot sleeper shark off the South Shetland Islands, in what may be the first recording of the species that far south....

Scientists have recorded what they say is the first shark ever documented in Antarctic waters, capturing video of the animal nearly 1,600 feet below...

Orcas were filmed attacking a shark off Neptune Islands in South Australia.

Orcas were filmed attacking a shark off Neptune Islands in South Australia.

Orcas were filmed attacking a shark off Neptune Islands in South Australia.

Sightings of Antarctic orcas in Australian waters are very rare. A tour group in WA saw what appeared to be a pod of Antarctic type B killer whales...

Sightings of Antarctic orcas in Australian waters are very rare. A tour group in WA saw what appeared to be a pod of Antarctic type B killer whales...

Antarctica is a continent that has long been believed to have no native reptile and shark species. But scientists have confirmed that they have...

Antarctica is a continent that has long been believed to have no native reptile and shark species. But scientists have confirmed that they have...