[SunkenCiv]

On the heels of his discovery in Montana of the first trace fossil of a dinosaur burrow, Emory University paleontologist Anthony Martin has found evidence of more dinosaur burrows -- this time on the other side of the world, in Victoria, Australia. The find, to be published this month in Cretaceous Research, suggests that burrowing behaviors were shared by dinosaurs of different species, in different hemispheres, and spanned millions of years during the Cretaceous Period, when some dinosaurs lived in polar environments.

Burrowing critters and various sealife are the species which survived the K-T impact events. No dinos survived it, so this either wasn't a commonplace behavior, or for whatever reason didn't help them survive, or they weren't dino burrows. :') Thanks decimon!

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[decimon]

No dinos survived it, so this either wasn't a commonplace behavior, or for whatever reason didn't help them survive, or they weren't dino burrows.

Or they were good with aboriginal beer.

[JimSEA]

K-T impact events

I have long felt that a combination of the comet and the Deccan Traps in India did away with most species. However, why birds, alligators, turtles and mammals survived, I can't begin to understand.