Marnie Chesterton

So, yeah, we'll see.

Well, thank you, Tristan.

Still to come, we're joined by a guest who can transport us to the magical creatures of Sky Island.

That's after this.

Hi there, it's Robbie here and it's time for this week's Unexpected Elements quiz.

This week we're heading to the plains of the African savannah to learn about the dung beetle.

Finding a mate is a simple game of finding a fresh pile of animal dung, rolling it into a perfect ball and getting it home.

Simple, right?

But these animals also have an ingenious navigation system to get that ball of dung where it needs to be.

It involves the beetle climbing on top of the dung ball, looking straight up into the night sky and then heading off home in a perfectly straight line.

So my question to you for this week is what object in the night sky are they using to find their way?

Is it A, the moon, B, the North Star or C, the Milky Way?

Again, what is it guiding this dung beetle on its journey home?

Is it A, the Moon, B, the North Star, or C, the Milky Way?

Tune in later in the show for an answer.

You're listening to Unexpected Elements from the BBC World Service, a science show that takes its inspiration from the news.

And this week we've been talking about Africa Day.

And one thing many of us know about Africa is that it's home to some iconic wildlife.

Your rhinos, your leopards, your elephants.

But who is showcasing the smaller, less flashy, but arguably equally important creatures that call this continent home?