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.

Hello, welcome along. Fantastic to have you here for an episode of the Fun Kids Science Weekly.

Yeah, my name's Dan. This is our quick trip all around the whole universe. We have a skim through the most amazing, weird and wonderful stuff that we can find. And then when we see something that's particularly dangerous and deadly, we kind of stop, have a breath and take a closer look.

This week we'll have a look at one of the most mean killers in the animal kingdom. Also,

we'll chat about the simple steps that you can do to help save the world and we'll speak to

an expert about the science behind being a superhero. That's on the way after we catch up with

our own science expert, Professor Hallecks, who's having a deep look inside your gob.

Professor Hallux's Digital Dental Depository

with support from Philip Zonikare.

What are you working on, Professor?

You remember my dear old uncle, halicosis?

The dentist. That's right.

It's nearly his hundredth birthday.

And in his honour, I'm creating a pop-up digital dental depository, an oral health help

desk, if you like.

I'm going to see how many questions all about teeth I can answer against the clock.

Give us a hand, will you, Nanabot?

Just needs winding up.

Here you go.

You can ask the questions.

Okay, first question.

Why do we need to clean our teeth?

...