It was one year ago when Dawn Brancheau, 40, was dragged into the water by a six-ton orca named Tilikum.
Brancheau was killed during one of SeaWorld's shows in Orlando, Florida. Officials said they don't want trainers to have any physical contact with Tilikum.
But trainers at SeaWorld's marine parks will now begin limited water work with whales. Interactions will be restricted at first to small medical pools.