If you could take a pill to halt ageing and become immortal, would you? Laura, Jasmin and Ellie take a look at some long-lived species, discuss just some of the science behind ageing and decide, if they could, whether they'd want to stay in their biological bodies forever or upload themselves to live digitally.

Read more about the science stories they discuss:

• Determining how long the Greenland shark lives for

Read some of the books they've read:

• Jellyfish Age Backwards: Nature's Secret to Longevity