This is a podcast from the children's radio station Fun Kids. Listen on DAB digital radio across the UK or online at FunKidsLive.com.

Right. Hello. Thanks for being there. No mess. And let's get straight to it. Welcome to the Fun Kids Science Weekly.

My name's Dan. Hello. And if you love, you're amazing, you're weird and you're wonderful and you're probably dangerous stuff from the universe, this is the place you need to stay.

It's where we whisk around the whole galaxy and see what's going on.

This week we're looking at one insect's ingenious method of keeping themselves disguised from predators.

Also, we'll find out why one of the most important scientific instruments in history is broken

and will learn why the world might be completely destroyed in about 10 years' time.

I promise, though, it's a fun listen.

We start with one of our favourite geniuses from Fun Kids.

This is Professor Hallex.

Professor Hallex's Digital Dental Depository.

The support from Philip Sonicare.

To honour great Uncle Halitosis, dentistry said, extraordinary, on the occasion of his 100th birthday,

Professor Hallex is creating a pop-up digital dental depository, an oral health health desk.

He's going to see how many questions all about teeth he can answer against the clock.

Give us a hand, will you, Nanobot? The turbine needs winding. Here you go.

You can ask the questions. Today, they're all about the bugs in our mouths.

Uh, bugs in our mouths? What an earth do you mean by bugs? What I mean by bugs is microorganisms such as bacteria, tiny living things which

make a home in all sorts of places on earth and that includes mouths. Bacteria collect everywhere

in the mouth and not just on the teeth and gums. They often cover parts of the cheeks and the back

of the throat. They can also live in between all the

bumps and ridges found on the tongue.

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