[wolfcreek]

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

[null and void]

Not much gets past you.

[Thumper1960]

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

Nope.

The Emu's and Ostriches merely buried their heads in the sand until the big, bad asteroid packed up and went back to Planet X.

[gleeaikin]

My theory is that birds were protected from the suns rays by their feathers when the monster meteor destroyed the ozone layer. Ditto the nocturnal mammals, shade loving and estivating small lizards and amphibeans, and the Crocodilians resting in caves cut into embankments.