It's science, but not as you know it. The Naked Scientists.

Hello and welcome to the Naked Scientists with me Helen Scales and Dave Ansel.

Hi Dave.

Coming up this week we'll be hearing

slightly sad news about the state of the world's oceans

and on a lighter note how science can help us build the perfect sand castle.

And Chris has popped across the pond this week and is all the way over in Boston, Massachusetts.

We'll be catching up with him later to find out how he's getting on at the AAA's Science Conference.

Also on this week's show we're looking at the science of transplant.

We'll hear about a new technique that keep a liver alive outside the body for longer than ever before.

Plus, Diana O' Carroll will be joining us in the studio for this week's smelly question of the week.

And in kitchen science, I'll be showing you how we found out that blood flows through your veins.

And that's all coming up in today's naked scientist.

If you want to get in touch, then send us an email Chris at the naked scientist.

The Naked Scientist Podcast, powered by UK Fast,

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Now as always we'll start off the show with a rundown of this week's science news

and I'm afraid I'm going to start off with some rather gloomy news from the world's oceans.

A new study out this week has revealed that there is literally nowhere to hide when it comes to the damaging effects we're having on the seas and oceans, and that over 40% of the world's

marine ecosystems are suffering from very high levels of threat.

Now a team of 19 international scientists have drawn up the first ever map of the oceans that

show where we're affecting them and by how much. The study was presented this week at

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