Social media has been flooded with dramatic videos of a killer whale, orca, supposedly attacking and killing marine trainer ...

Who is Kiska, the Orca? Jessica Radclifee orca attack viral video brings Kiska to limelight. Here's a sordid tale of the ...

Dubbed the "world's loneliest orca" by animal rights group PETA, Kiska's life had "tragedy after tragedy" after she became MarineLand's last killer whale in 2011.

Kiska's life of continued isolation led the Whale Sanctuary Project to describe her as "the loneliest whale in the world." Both animal rights groups reported that Kiska died of a bacterial infection.

Kiska had five offspring while staying in captivity, but all of them died young. The minimum life span one of the calves survived was two months, while the baby with the longest life span lived ...

Kiska was dubbed the "world's loneliest" whale. Tara Walton/Toronto Star via Getty Images Kiska, known as the “world’s loneliest” orca, died Friday at Marineland in Ontario, Canada.

"Kiska’s conditions ranged from tiny tanks, to grossly compromised and deteriorating ones," he told The Sun. "In 2012, as a whistleblower of animal cruelty, I revealed water issues at the park.