![Protecting the Oceans - podcast episode cover](http://ichef.bbci.co.uk/images/ic/3000x3000/p0d8lrz7.jpg)
Episode description
Chris Berrow and the Naked Scientist team present the week's science news. In today’s programme we look at the heatwaves sweeping across Europe; how babies in the womb use a “greedy” gene to get more food from mum; and why do tennis players take so long to choose a ball to serve with?
Plus we look at some of the ways scientists are trying to protect our planet’s oceans.