At day 4 we’re nearly half way through the event. Hope you’re all chatting, asking and voting!

Today’s highlights in the Cadmium Zone:

• If dinosaurs returned…

If dinosaurs were alive now, would they kill us or would we be bffs?

• Could we ever get them back?

Could we ever restore an extinct species?

• And an interesting question on human evolution:

How would humans have evolved differently if we had multiple suns?