Before the flood there was a firmament around the planet, protecting it from UV and also making the oxygen much more dense. No UV means little or no genetic mutations(loss of genetic info). Also, look at how quickly athletes heal in oxygen tanks, and imagine the whole world like that. Pre-flood world is almost unimaginable. To think about how abundant life was, imagine all of today's oil and coal coming from plants and animals killed during the flood.
The oxygen density is particularly interesting. Just breathing would be pleasurable. Fauna would be huge. Another interesting bit is that lizards never stop growing. We have giant lizards at 100s of years, if they were allowed to go to 1000 you'd have something akin to a dinosaur.
Before the flood there was a firmament around the planet, protecting it from UV and also making the oxygen much more dense. No UV means little or no genetic mutations(loss of genetic info). Also, look at how quickly athletes heal in oxygen tanks, and imagine the whole world like that. Pre-flood world is almost unimaginable. To think about how abundant life was, imagine all of today's oil and coal coming from plants and animals killed during the flood.
The oxygen density is particularly interesting. Just breathing would be pleasurable. Fauna would be huge. Another interesting bit is that lizards never stop growing. We have giant lizards at 100s of years, if they were allowed to go to 1000 you'd have something akin to a dinosaur.