Why has the whale migration started early this year? | 9 News Australia

Whale migration has seemingly started early this year, with the first humpbacks spotted making their journey northward off Bondi Beach in the last fortnight. Marine scientist Dr Vanessa Pirotta joins Mark Burrows to discuss. | *Subscribe and 🔔: http://9Soci.al/KM6e50GjSK9* *Get more breaking news at 9News.com.au: http://9Soci.al/iyCO50GjSK6* FOLLOW 9News Australia ► Facebook: https://www.facebook.com/9News/ ► Twitter: https://twitter.com/9NewsAUS ► Instagram: https://www.instagram.com/9news/ Join 9News for the latest in news and events that affect you in your local city, as well as news from across Australia and the world.