Dave Hone

And it fits with what we know of their size, their vision.

They've got a very good sense of smell.

Again, that makes sense at night.

It makes less sense if you're diurnal and operating primarily in the day.

And you've got to hide this thing.

And then we know they're pretty efficient versus relatively fast but not that efficient prey.

They're obviously both.

A, because we've got things like the bite marks I just described, which is pretty much definitive scavenging.

And then we've got the healed bite marks with T-Rex teeth buried in bones, which is pretty much definitive active predation.

So we've got evidence of it doing both.

But can we possibly figure out what was the primary strategy?

That gets much harder.

My guess is they're probably still primarily actively carnivorous.

Because if you look at stuff that's reliant on being...

a scavenger.

I mean, the true scavengers, like the vultures and condors and stuff like this, you have to be ultra long distance, very energy efficient travelers.

They're soaring in thermals.

They're barely using any energy to fly.

It's really hard to get very far.

How far were they spread?