Listener Ellie wanted to know: "how do ZIP files work on my computer?" Phil Sansom unzipped the question - with an answer from research data scientist Peter Foster... Like this podcast? Please help us by <a href="https://www.thenakedscientists.com/donate">supporting the Naked Scientists</a>

Can flies survive the winter?

Each week we set out to solve one of the world's weirdest, wackiest, funniest and funkiest scientific puzzles. And along with the answer there's a brand new question to think about for next time...