[SmartAZ]

Dinosaurs were extincted, but frogs were not. Frogs were there, and we still have them. The impact theory does not explain why dinosaurs died and frogs didn't. It also doesn't explain why most plants before that time were gymnosperms and most plants since then are angiosperms.

[SunkenCiv]

Welcome to FR.

[-=SoylentSquirrel=-]

"...It also doesn't explain why most plants before that time were gymnosperms and most plants since then are angiosperms...."

Hey Hey, keep it clean, you potty mouth!

I understand that the meteor impact site is near or at the location of the present day Mexican state of Quintana Roo.

Nothing to add, I just wanted to say "Quintana Roo".

[Al Simmons]

This might help you to understand why some critters survived K-T and most did not.

http://www.exodus2006.com/fires.htm

[Al Simmons]

Basically, any critter small enough to hide in a burrow (mammals, birds) or to hibernate through the catastrophe (snakes, crocs, lizards, amphibians) survived the initial firestorms and subsequent 3-4 month global winter (and global cooling that followed, acid rain, etc.)

If you were big and warmblooded (dinosaurs) you had nowhere to hide and even if you somehow survived the initial fiery cataclysm would have frozen/starved to death.

If you were small and warmblooded (mammals) you survived the fire and freeze underground, undoubtedly feasting on the carrion littering the entire face of the earth. Ditto for small birds....