Is There a Difference Between Male and Female Spermocytes?

34 days after it first formed at the far end of the Indian Ocean, record-breaking Cyclone Freddy made a repeat landfall on Mozambique as well as passing over Malawi, causing extensive damage and loss of life. Climate scientists Liz Stephens and Izidine Pinto join Roland to give an update on the destruction and explain how Cyclone Freddy kept going for an exceptionally long time.

At the Third International Human Genome Summit in London last week, Professor Katsuhiko Hayashi announced he had created baby mice from eggs formed by male mouse cells. Dr Nitzan Gonen explains the underlying science, whilst Professor Hank Greely discusses the ethics and future prospects.

And from one rodent story to another, SARS-CoV-2 has been detected in brown rats scurrying around New York sewers. Dr Thomas DeLiberto from the US Department of Agriculture gives Roland the details.

Image credit: Jack McBrams/Getty Images

Producer: Roland Pease Assistant Producer: Sophie Ormiston