A scuba diver became the third fatality from a shark attack in as many weeks . Authorities believe the man was killed by a great white off the Australian coast . Score: 6 Shark encounters more likely , as water-based activities become more popular . But he says many more people drown on average off Australian beaches .
A scuba diver became the third fatality from a shark attack in as many weeks . Authorities believe the man was killed by a great white off the Australian coast . West : Shark encounters more likely , as water-based activities become more popular . But he says many more people drown on average off Australian beaches .