Peter Gallivan
Science communicator and author; Outreach Manager in the Faculty of Natural, Mathematical & Engineering Sciences at King's College London, and regular contributor to The Week Junior Science+Nature.
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PODCASTS
Mar 27, 2026
DanHOST
You've done a really great job there setting the background to this question, but I'm really keen to find out what's
Peter GallivanGUEST
So what came first, the chicken or the egg? what is an egg? So two chickens will breed together and the female chicken will lay an egg.
Peter GallivanGUEST
So slowly over the long hundreds of millions of years of history, birds have slowly adapted.
Peter GallivanGUEST
And at one point in time, eventually an animal came to being that was what we would think of as a chicken.
11 MINS LATER
DanHOST
How do they form then? That really