Why do killer whales (orcas) in captivity kill humans, whereas this doesn't happen in the wild? Federal hearings on the safety of keeping killer whales in captivity began this week, convened by the ...

SeaWorld Orlando has announced the death of Katina, one of the park's longest-living killer whales, reigniting debate around the ethics of keeping orcas in captivity for life. Katina died at the age ...