Does have to be ancient life, you could also tell them about:

Farming techniques in the middle ages centering around Southern France in comparison to Manchuria.

Your favorite clothes buttons of the Victorian era.

The nuances of tardigrade body language.

The evolution of footwear prior to hard soles.

The fascinating history of rivets.

How women in the early 1900s are responsible for how unhealthy fast food is today and why the government can’t do anything right.

All about the history of houndstooth as it relates to fashion and feudalism.

Why they should bring back lawn darts for the betterment of our schools.

And so many more conversations that will allow you to work in peace.