This week, traces of beeswax in ancient pots reveal our ancestors had a taste for honey.

By finding those beeswax biomarkers, we could actually map trends in bee product use in prehistory.

And porous solids are well known, but could a liquid ever be porous?

It's easy to imagine how you make a space in a structure when you have rigid components to build your structure with.

If you take an ordinary liquid, that's a very different sort of a material.

Plus storms on Twitter over sexism in science.

This is the Nature podcast for November the 11th, 2015. I'm

Kerry Smith. And I'm Adam Levy.

Some things in science sound like contradictions. There are particles with no mass.

Inflammable still means flammable.

Oh yeah, you don't want to make that mistake.

Well, how about this new one?

Porous liquids.

We usually think of porous things as solids.

They act a bit like sponges, which have spaces in them for other substances to be absorbed.

In porous solids, tiny holes exist between molecules that don't move.

That's what makes solids solid.

But liquids.

Their molecules are moving around, bumping into each other,

not leaving any space for anything else to live there.

Surely they can't be porous.

Well, Stuart James disagrees

...