Emily Kwong

For example, the Gentoo penguins are suited for warmer climates and eat a wider variety of fish.

So it seems that Gentoo's are doing better than the other species, which could struggle with warmer temperatures.

And there might be an answer now, published in the Journal of Chemical Physics this week.

Luis González McDowell, a chemist at Complutense University of Madrid, looked at research all the way back to the 1930s to address this debate.

He also ran computer simulations to see how ice freezes or melts, really looking at what happens to that surface.

And this is interesting because some past theories thought that maybe the pressure from like, let's say, an ice skate may be the thing creating that layer of water on the ice.

And he says it's always there down to negative 10 degrees Celsius.

And Luis's computer models also took into account humidity and found that humidity levels can also affect the formation and thickness of that water layer.

Looking ahead to the Winter Olympics in Italy, there's already been some concern about the ice rinks and whether the ice is smooth enough to skate on.

And according to Luis's work, if the humidity isn't quite right...

that could also affect the slipperiness.

This is inspired by the psychology of disgust.

So disgust is really important to our survival as humans because it helps us avoid all kinds of substances that would otherwise make us like sick.

Remember, disgust was one of the five basic emotions in that movie Inside Out.

Yeah.

Especially if you're a parent, which I am, and scientists at the University of Bristol and Whitman College wanted to know, how long do parents hold on to their tolerance for these gross things?

By tracking the volunteers' attention as they looked at these photos, his team found out that the non-parents tend to avoid the discussing photos, whereas the parents showed little to no avoidance.

They would look at those pictures of soiled diapers with little aversion, including parents who hadn't changed a dirty diaper in decades, which is like similar to me.

I am not bothered.

Maybe.