You're about to listen to a BBC podcast and maybe it's when I had a hand in.

I'm Tammy Walker and I produce podcasts for the BBC.

My role is to give new and diverse creators a voice with the opportunity to build a career.

That's the thing I love about podcasts.

You start with just a good idea, but then you have the space to see where it goes.

And doing that at the BBC means we can really run with the best stories

while developing the most unique audio talent.

So if you like what you hear, why not check out the huge range of podcast we've got on BBC

Sounds.

Hello and thank you for clicking on this episode of Crowd Science.

If you're new, welcome to the Science Party.

We have over 70 other episodes, so feel free to browse and listen at your leisure.

For the rest of you, I'll stop waffling on and get on with the

podcast. Enjoy.

This is a show based on your questions. Normally we take one question and travel the world to bring you

answers. This week we've brought several questions and experts to the BBC studio

in London and for the next half hour we're going to be discussing them. More on that in a bit.

But first I want to introduce you to our two experts

who've joined me in the studio.

Can you both tell me your name, affiliation and specialist subject.

Hello, my name is Erica McAllister.

I'm a senior curator of flies and fleas at the Natural History Museum in London.

...