Dave Hone

And we absolutely know there's been loads of studies on this in mammals and birds and other things as well that basically eyeball size correlates with visual acuity.

And that can fold in two different ways.

It can be like general sharpness, like how well can you see a long way away?

So eagles and vultures, it's really important.

Or it can be good in low light.

Yeah, I come across it occasionally.

Oh, that's ecliptodontid.

So these are giant armadillo-like animals with club tails.

Oh, that's Black Beauty.

That's at the Royal Tyrrell Museum.

So giant eyeballs, they can either see very well, they can see a very long way in daylight, or they can see very well at night.

And my suspicion is it's the latter.

I think they're probably primarily nocturnal when they get that size.

Yeah.

But I think if it starts coming towards you...

If you're truly in the open, then you're in real trouble, and I'm not sure why you do.

I mean, the one advantage humans have over almost anything else on Earth, there's a handful of exceptions, is we have range.

I can pick up a rock and hurl it with reasonable accuracy.

Most things can't do that.

And animals probably don't like being hit in the face or hit in the eyes with a rock at a range.