[femto]

A problem with metric-imperial conversion in the article? Based on having seen them in the bush, wombat poo is a 4 centimetre cube not a 4 inch cube. That would be a Diprotodon sized wombat. Lucky we're only talking about wombat poo, and not something important like a space craft...

[SoMomentary]

I think the 4 inches is in relation to the size of a human poo and not about the size of wombat poo.

[ErroneousBosh]

Or a very very uncomfortable normal-sized wombat.