CHURCH: An army of volunteers is working feverishly to head off a wildlife catastrophe in Tasmania, Australia. More than 450 whales have stranded themselves in a harbor and on a sand bar off the islands West Coast, the largest mass whale beaching in Tasmania's history. Experts believe more than a third of the whales have died. One biologist says any whale we save, we are considering a real win. It's not clear what's prompting the whales to do this. Well, time and again, we've heard how vitally important the upcoming U.S. election will be. And now even the Duke and Duchess of Sussex are weighing in. In a virtual event for the Time 100, Prince Harry and Meghan Markle warned of the need to reject hate speech, misinformation and negativity online.</s>MEGHAN MARKLE, DUCHESS OF SUSSEX: What we are exposed to online seeped into how we engage with each other offline. It can train us to be kind or it can train us to be cruel.</s>PRINCE HARRY, DUKE OF SUSSEX: When the bad outweighs the good, for many, whether we realize it or not, it erodes our ability to have compassion and our ability to put ourselves in someone else's shoes. Because when one person buys into negativity on line, the effects are felt exponentially.</s>CHURCH: The duchess noted how we always hear this is the most important election of our lifetime, but this year she says, it truly is. And thanks so much for joining us. I'm Rosemary Church. Be sure to connect with me on Twitter at Rosemary CNN, and I'll be back with more news in just a moment. Stay with us.
Race to Save Hundreds of Beached Whale Off Tasmania.