I recently did a review of just what happened during the asteroid/comet impact and afterward, and it was insanely bad. And not limited to near the impact site, either, as ejecta shot back into space and rained down on the whole planet. The atmospheric temperature was well above boiling, rain of fiery stones starting literally all the world’s forests on fire, earthquakes of 11 on the Richter scale. For those within visual distance of the impactor, flesh would turn to flame due to the intensity of the light. Massive inland tsunamis. Followed by years and decades of dark winter (50 degrees below average) and then 5 deg C global warming for thousands of years.

Almost everything would’ve been dead on land within hours. That species survived means a few individuals survived. Something like 99% of everything living on land would’ve been killed early on. No exclusively land-based tetrapods over 25 kilograms survived.

Look at the data around the late Cretaceous Deccan Traps eruptions. It's pretty clear that large scale volcanic activity is the real culprit, just as it's been with nearly every mass extinction event.

The impact event had a big effect too but the end was already written before the cosmic gun went off.

There's also emerging evidence that dinosaurs survived in pockets for a few hundred thousand years after the impact. Most of this comes out of New Mexico and is based on radiometric sequences that have yet to be accepted on a wide scale, but it is there.

I thought it made sense. They were quoting a scientist from one study, and then showed how the next study disputes this. They were highlighting the scientific argument.

I guess if you think of pull-quotes as the take-away points of the article it's confusing, but I don't usually read them that way.

I hear the tyrannosaurs were up in arms over the hoax but it did little good. The brontosaurs were sticking their necks out but it never came to a head. The triceratops kept trying to put a fine point on the argument but alas, it came to naught.

Only the poor dinosaurs, not the rich ones.

How are birds faring with climate change, actually?