Unexpected elements is the podcast shining a light on the science lurking behind the news.

We know lots of scientists and we're not afraid to call them up.

Unexpected elements from the BBC World Service find it wherever you get your BBC podcasts.

We are now in the Beowire Forest.

We are in the habitat of the Narevka River which is more like a wetland.

So we're standing on the banks of the river and under our feet this thick squishy mud.

The texture of the air is really different.

We can feel the forest, we can smell the fragrance of the forest.

But also when we are near to the water the air is yet different because we can smell the dampness of the earth and all those plants that grow near to the water.

So we can hear freshers, song freshers, the one is slightly farther away on the left.

But there is also slightly behind us on the right side there is the other so they are counter-singing.

And it seems also there is a third one further behind us.

Isabella Dvořik is recording in her favourite place.

The Beowire Forest which spreads between northeast Poland where we are across the border into Belarus.

So long before these countries were ever imagined the Beowire Forest was old.

It's one of the last and largest parts of the primeval woodland that once stretched throughout the whole of the European plain.

Now in summer it's thick with a hundred shades of green and humming with hidden life.

This is one of the best preserved forest in Europe and this forest is continuously existing here for 12,000 years since the last glaciation.

I simply fell in love with this forest.

Sometimes when I am going for wood for burning in my stove in the night I listen to wolves holding just in the front of the house.

When you listen to wolves from close there is crazy machines.

It's a listening super nice.

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