[ClearCase_guy]

I found some old bones.

Here, let me tell you all about the 7632 assumptions, guesses and conjectures which I've come up with so far ...

[wolfcreek]

Soooo, whatever killed the dinosaurs DIDN’T kill emus and ostriches?

[Little Bill]

Ping

[dog breath]

If I was large flightless bird that looked like lunch, I would learn to run really fast also.

[knarf]

There ain't nuthin' neater'n flyin' !!

So, those deumsticks developed for what?

" Hey ralph, I 'eah theahse a new species on the mahkit ... man. We'd bettah d'velope some gams, mite ... chise'em down an'at"

[Secret Agent Man]

Yes, they got tired of the TSA scanners and decided to take the bus.

(I gave this topic the entire respect it deserved.)

[Iscool]

That’s right...And then fish which roamed the land developed fins, tails and gills so they could evade the now land roaming emus...

[6SJ7]

Emus and ostriches became fat, flightless birds after dinosaurs died out and were no longer around to chase them, scientists believe.

I'm guessing the dinosaurs ran out of barbecue sauce. That's when ostriches felt safe to start walking around.

[Daffynition]

The woolly mammoths did it. Case closed.

[count-your-change]

If a big asteroid hit the earth sending firestorms and destruction of vegetation around the globe, what happened to the birds?

[Verginius Rufus]

Some people would say that birds are dinosaurs. 65 million years ago, the non-avian dinosaurs became extinct, but the birds survived.

[wildbill]

Conversation between two ancient ostriches:

Herb: Fred, I really like the new wingless look. Kinda like an wngless asperytix on steroids. And look at those legs. You’re really evolving, Dude.

Fred: Yeah, you better get with the long-legs program, buddy, I hear they got something called cheetahs coming on line.

[wendy1946]

If ancestors of ostriches or emus ever did fly, then either gravity was less or the birds were smaller. The limit for flying creatures in our world is around 30 - 40 lbs.