Hannah's asking all the questions you ever wanted to know about whales. Did you know they have culture? She's joined by whale legend Hal Whitehead, whose close encounters with sperm whales and understanding of their culture has completely changed how we view these enormous animals.

Also - we've had an update from the team onboard the Arctic Sunrise, the research ship that's on its way to the Galapagos Islands.

Listen to Roger Payne's groundbreaking whale song recording here: https://www.youtube.com/watch?v=sjkxUA041nM

Listen to his last ever interview here: https://www.youtube.com/watch?v=APtmz_BAWPg

Follow us on IG, X and TikTok for bonus content and whale videos: @oceanspod.

If you want to know more about the oceans and how to protect them, come and join us here: https://act.gp/life-under-water.