Fossils - why there is so much excitement at the moment?

Dr Chris Smith and the Naked Scientist team present the latest science news, analysis and breakthroughs.In today’s programme: we look at the enquiry into the Covid-19 pandemic, what is it hoping to achieve? and how an AI is writing its own computer code, speeding up the Internet. Plus fossils - why there is so much excitement in this field at the moment?Get the podcast from the BBC Sounds app.