Not _all_ dinosaurs were wiped out (at least several species of avian theropods survived) and it wasn't only the lineage leading to _Rodentia_ that survived -- and the Chicxulub impactor didn't destroy 90% of species, that was the Permian-triassic extinction. The Chicxulub event only wiped out 75%.
The main difference between Earth water and asteroid water is the fact that the water from asteroids was never dinosaur urine. Most water on Earth was at some point.
glad to see you again in such a good shape
Not _all_ dinosaurs were wiped out (at least several species of avian theropods survived) and it wasn't only the lineage leading to _Rodentia_ that survived -- and the Chicxulub impactor didn't destroy 90% of species, that was the Permian-triassic extinction. The Chicxulub event only wiped out 75%.
The main difference between Earth water and asteroid water is the fact that the water from asteroids was never dinosaur urine. Most water on Earth was at some point.
I think i saw 3 astroids moving across the image. 2 on the bottom left and 1 on the top right.