The Noahide Flood

[Anomalocaris]

Based on the recoveries from previous ecological calamities in earth’s history that were nowhere near as severe as drowning the earth in 8 km of water, such as the Permian extinction event,  it will take tens of millions of years before the global ecosystem return to pre-extinction level of depth and diversity.

After Noachian flood receded,, chances are all the offsprings of all carnivore pairs on the ark would starve and have died out quickly because it takes many suitable herbivore head count to sustain a single carnivore head count.      The result is just one or a few species of large herbivores species will survive and spread around the globe to create a monocultural ecosystem.   It will then take many hundreds of thousand of years for their descendants to speciate and specialize and take advantage of vacant niches.    Some of their descendants will evolve into carnivores to replace the carnivores lost in the immediate aftermath of the initial disaster.    But to fully restore the ecosystem it will tens of millions.

for those who believe in noah and not evolution,   the world after any Noachian flood would be ironically necessarily be the most intense examples of macro evolution in action.