Great White shark named Helen attacks and drowns a 32-foot humpback whale

Scientists have recorded the first documented evidence of a great white shark attacking and killing an enormous humpback whale. Video taken from a drone off the coast of South Africa shows the 13-foot long shark hunting the whale which was around 33ft long and in ill health. Ryan Johnson, a marine biologist who observed the massacre, says the ordeal lasted about 50 minutes before the whale eventually died. Mr Johnson says the great white was very strategic in taking down the behemoth, and targeted its most vulnerable area, on the tail, before drowning the ailing whale. The great white is believed to be a shark called Helen which was named and tagged as part of a 2013 study by Mr Johnson.